Alert archive / Wyoming / Winter Storm Warnings in 2010
Winter Storm Warning 21, NWS Riverton, WY
NWS Riverton, WY issued this winter storm warning at Dec 28, 2010, 2:58 PM MST for 6 counties in Wyoming. It took effect at Dec 29, 2010, 12:00 AM MST. It was in force for 53 hr. 60 reports came from inside the area while it was in force.
The area
The counties it named, with what was reported inside it.
The facts
- Issued
- Dec 28, 2010, 2:58 PM MST (21:58 UTC)
- In effect from
- Dec 29, 2010, 12:00 AM MST
- Expired
- Dec 31, 2010, 5:00 AM MST
- In force
- 53 hr
- Issued by
- NWS Riverton, WY
Counties Fremont County, WY, Lincoln County, WY, Natrona County, WY, Sublette County, WY, Sweetwater County, WY, Teton County, WY
The radar
The Riverton/Lander radar (KRIW), 71 km from the middle of the area, began a volume at 22:01 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Dec 29, 7:00 AM MST | SNOW 4.5 | Jackson, WY | |
| Dec 29, 7:03 AM MST | HEAVY SNOW 8 | 2 Sw Teton Village, WY | |
| Dec 29, 7:04 AM MST | HEAVY SNOW 6 | Moose, WY | |
| Dec 29, 7:48 AM MST | SNOW 3 | 5 Sse Smoot, WY | |
| Dec 29, 8:31 AM MST | HEAVY SNOW 12 | Jackson Lake, WY | |
| Dec 29, 8:32 AM MST | HEAVY SNOW 6 | Moose, WY | |
| Dec 29, 8:57 AM MST | SNOW 4.5 | Lake, WY | LAKE RANGER STATION |
| Dec 29, 8:57 AM MST | HEAVY SNOW 12 | Old Faithful, WY | OLD FAITHFUL RANGER STATION |
| Dec 29, 8:59 AM MST | HEAVY SNOW 6 | 12 Ne Jackson, WY | |
| Dec 29, 9:05 AM MST | HEAVY SNOW 10 | Grand Targhee Ski Area, WY | |
| Dec 29, 9:07 AM MST | SNOW 5 | 9.3 Nnw Jackson, WY | JACKSON HOLE-MID |
| Dec 29, 9:07 AM MST | HEAVY SNOW 6 | 9.9 Nnw Jackson, WY | JACKSON HOLE-RAYMER |
| Dec 29, 9:08 AM MST | SNOW 1 | 17.2 E Thayne, WY | BLIND BULL SUMMIT |
| Dec 29, 9:08 AM MST | SNOW 4 | 8.6 Nnw Jackson, WY | JACKSON HOLE-BASE |
| Dec 29, 9:08 AM MST | HEAVY SNOW 6 | 5 Ne Alta, WY | GRAND TARGHEE-CHIEF JOSEPH |
| Dec 29, 9:09 AM MST | SNOW 1 | 14.3 E Thayne, WY | BOX Y RANCH |
| Dec 29, 9:09 AM MST | SNOW 1 | 23 Nw Dubois, WY | BROOKS LAKE LODGE |
| Dec 29, 9:10 AM MST | SNOW 4 | Thayne, WY | |
| Dec 29, 9:10 AM MST | SNOW 5.5 | 1 Nw Alpine, WY | |
| Dec 29, 9:11 AM MST | SNOW 0.5 | Cokeville, WY | |
| Dec 29, 9:11 AM MST | SNOW 1 | Afton, WY | |
| Dec 29, 9:11 AM MST | SNOW 3 | Cokeville, WY | |
| Dec 29, 9:11 AM MST | SNOW 3 | Freedom, WY | |
| Dec 29, 9:11 AM MST | SNOW 4 | Bedford, WY | |
| Dec 29, 9:11 AM MST | HEAVY SNOW 10 | 11 S Jackson, WY | |
| Dec 29, 9:13 AM MST | SNOW 1 | Togwotee Mountain Lodge, WY | |
| Dec 29, 9:14 AM MST | SNOW 4 | 1 S Jackson, WY | SNOW KING SKI AREA |
| Dec 29, 9:15 AM MST | SNOW 3 | 9 Ne Pinedale, WY | WHITE PINE SKI AREA |
| Dec 29, 9:52 AM MST | SNOW 3 | Darwin Ranch, WY | |
| Dec 29, 9:52 AM MST | SNOW 4.5 | 10 N Bondurant, WY | GRANITE CREEK SNOTEL |
| Dec 29, 9:53 AM MST | SNOW 3 | 20 Ne Bondurant, WY | GROS VENTRE SUMMIT SNOTEL |
| Dec 29, 9:54 AM MST | SNOW 1.5 | 25 Mw Dubois, WY | TOGWOTEE PASS SNOTEL |
| Dec 29, 9:54 AM MST | SNOW 3 | 12 Nne Pinedale, WY | ELKHART PARK G.S. SNOTEL |
| Dec 29, 9:54 AM MST | SNOW 4.5 | 24 Ese Boulder, WY | BIG SANDY OPENING SNOTEL |
| Dec 29, 9:54 AM MST | SNOW 4.5 | South Entrance, WY | SNAKE RIVER STN SNOTEL |
| Dec 29, 9:55 AM MST | SNOW 3 | 16 Sw Dubois, WY | GUNSITE PASS SNOTEL |
| Dec 29, 9:55 AM MST | SNOW 3 | 22 N Cora, WY | KENDALL RANGER STATION SNOTEL |
| Dec 29, 9:56 AM MST | SNOW 1.5 | 12 N Cora, WY | NEW FORK LAKE SNOTEL |
| Dec 29, 9:56 AM MST | SNOW 3 | 16 E Boulder, WY | POCKET CREEK SNOTEL |
| Dec 29, 9:56 AM MST | SNOW 4.5 | 14 E Bondurant, WY | LOOMIS PARK SNOTEL |
| Dec 29, 9:57 AM MST | SNOW 1.5 | 8 Se Afton, WY | COTTONWOOD CREEK SNOTEL |
| Dec 29, 9:57 AM MST | SNOW 3 | 26 N Kemmerer, WY | HAMS FORK SNOTEL |
| Dec 29, 9:57 AM MST | HEAVY SNOW 6 | 19 Sw Bondurant, WY | BLIND BULL SUMMIT SNOTEL |
| Dec 29, 9:57 AM MST | HEAVY SNOW 7.5 | 15 Nne Cokeville, WY | KELLEY RANGER STATION SNOTEL |
| Dec 29, 9:57 AM MST | HEAVY SNOW 7.5 | 36 N Kemmerer, WY | INDIAN CREEK SNOTEL |
| Dec 29, 10:00 AM MST | HEAVY SNOW 6 | 19 Se Afton, WY | SPRING CREEK DIVIDE SNOTEL |
| Dec 29, 10:01 AM MST | SNOW 3 | 12 Ese Bondurant, WY | EAST RIM DIVIDE SNOTEL |
| Dec 29, 10:01 AM MST | SNOW 4.5 | 15 S Afton, WY | SALT RIVER SUMMIT SNOTEL |
| Dec 29, 10:01 AM MST | SNOW 4.5 | 17 E Afton, WY | TRIPLE PEAK SNOTEL |
| Dec 29, 10:01 AM MST | SNOW 4.5 | 21 W Big Piney, WY | SNIDER BASIN SNOTEL |
| Dec 29, 10:01 AM MST | SNOW 4.5 | 8 Ne Afton, WY | WILLOW CREEK SNOTEL |
| Dec 29, 10:02 AM MST | SNOW 3 | Pinedale, WY | |
| Dec 29, 10:04 AM MST | SNOW 4 | 17 N Cora, WY | |
| Dec 29, 10:05 AM MST | SNOW 2 | Cora, WY | |
| Dec 29, 10:05 AM MST | SNOW 2 | Daniel, WY | |
| Dec 29, 10:07 AM MST | HEAVY SNOW 13.5 | 8 Wnw Jackson, WY | PHILLIPS BENCH SNOTEL |
| Dec 29, 10:08 AM MST | HEAVY SNOW 12 | Wilson, WY | |
| Dec 29, 10:18 AM MST | SNOW 4 | Bondurant, WY | |
| Dec 29, 10:19 AM MST | HEAVY SNOW 6 | 6 Ene Alta, WY | GRAND TARGHEE SNOTEL |
| Dec 29, 10:20 AM MST | SNOW 4.5 | 8 Nne Moran Junction, WY | BASE CAMP SNOTEL |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Riverton, WY (KRIW), launched 12:00Z, 10.0 hours before the alert went out and 76 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.
- Mixed-layer CAPE
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 2250 m above ground
- 0-6 km bulk shear
- 37 kt
- 0-1 km storm-relative helicity
- 14 m²/s²
- 0-3 km storm-relative helicity
- 164 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
028 WWUS45 KRIW 282158 WSWRIW URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE RIVERTON WY 258 PM MST TUE DEC 28 2010 ...SIGNIFICANT SNOWFALL RETURNS TO WESTERN WYOMING LATE TONIGHT AND WEDNESDAY... .A PACIFIC STORM SYSTEM WILL MOVE INTO THE CENTRAL GREAT BASIN TONIGHT INTO WEDNESDAY AND IS EXPECTED TO BRING PERIODS OF HEAVY SNOWFALL TO WESTERN WYOMING LATE TONIGHT THROUGH WEDNESDAY EVENING. GUSTY SOUTH TO SOUTHWEST WINDS COULD ALSO CREATE AREAS OF BLOWING SNOW. WYZ012-290700- /O.UPG.KRIW.WS.A.0017.101229T0700Z-101230T0700Z/ /O.NEW.KRIW.WS.W.0021.101229T0700Z-101230T0700Z/ TETON AND GROS VENTRE MOUNTAINS- 258 PM MST TUE DEC 28 2010 ...WINTER STORM WARNING IN EFFECT FROM MIDNIGHT TONIGHT TO MIDNIGHT MST WEDNESDAY NIGHT... THE NATIONAL WEATHER SERVICE IN RIVERTON HAS ISSUED A WINTER STORM WARNING FOR HEAVY SNOW...WHICH IS IN EFFECT FROM MIDNIGHT TONIGHT TO MIDNIGHT MST WEDNESDAY NIGHT. THE WINTER STORM WATCH IS NO LONGER IN EFFECT. * SUMMARY AND TIMING...SNOW WILL BECOME WIDESPREAD LATE THIS EVENING...BECOMING HEAVY AT TIMES EARLY WEDNESDAY MORNING. THE SNOW IS EXPECTED TO CONTINUE THROUGH LATE WEDNESDAY EVENING. * SNOW ACCUMULATIONS...SNOWFALL OF 10 TO 15 INCHES IS POSSIBLE BY WEDNESDAY EVENING. * WIND AND VISIBILITY...SOUTH TO SOUTHWEST WINDS OF 20 TO 35 MPH WITH HIGHER GUSTS COULD CAUSE SIGNIFICANT BLOWING AND DRIFTING SNOW...CREATING NEAR WHITEOUT CONDITIONS...ESPECIALLY AT PASS AND SUMMIT ELEVATIONS. * IMPACTS...TRAVEL OVER TETON AND TOGWOTEE PASSES ARE EXPECTED TO BECOME SNOWPACKED AND TREACHEROUS LATE TONIGHT AND WEDNESDAY. THOSE PLANNING OUTDOOR ACTIVITIES SHOULD BE PREPARED FOR DETERIORATING WEATHER CONDITIONS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED OR OCCURRING. SIGNIFICANT AMOUNTS OF SNOW ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN AN EMERGENCY. IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT... FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY. && $$ WYZ024-290700- /O.UPG.KRIW.WS.A.0017.101229T0700Z-101230T0700Z/ /O.NEW.KRIW.WS.W.0021.101229T0700Z-101230T0700Z/ SALT RIVER AND WYOMING RANGES- 258 PM MST TUE DEC 28 2010 ...WINTER STORM WARNING IN EFFECT FROM MIDNIGHT TONIGHT TO MIDNIGHT MST WEDNESDAY NIGHT... THE NATIONAL WEATHER SERVICE IN RIVERTON HAS ISSUED A WINTER STORM WARNING FOR HEAVY SNOW...WHICH IS IN EFFECT FROM MIDNIGHT TONIGHT TO MIDNIGHT MST WEDNESDAY NIGHT. THE WINTER STORM WATCH IS NO LONGER IN EFFECT. * SUMMARY AND TIMING...SNOW IS EXPECTED TO BECOME WIDESPREAD LATE THIS EVENING AND WILL BECOME HEAVY AT TIMES EARLY WEDNESDAY MORNING. SNOW WILL CONTINUE THROUGH LATE WEDNESDAY EVENING. * SNOW ACCUMULATIONS...SNOWFALL OF 10 TO 18 INCHES IS POSSIBLE BY LATE WEDNESDAY EVENING. * WIND AND VISIBILITY...SOUTH TO SOUTHWEST WINDS OF 20 TO 35 MPH WITH HIGHER GUSTS COULD CAUSE SIGNIFICANT BLOWING AND DRIFTING SNOW...CREATING NEAR WHITEOUT CONDITIONS...ESPECIALLY AT PASS AND SUMMIT ELEVATIONS. * IMPACTS...TRAVEL OVER SALT RIVER PASS IS EXPECTED TO BECOME SNOWPACKED AND TREACHEROUS LATE TONIGHT AND WEDNESDAY. THOSE PLANNING OUTDOOR ACTIVITIES SHOULD BE PREPARED FOR DETERIORATING WEATHER CONDITIONS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED OR OCCURRING. SIGNIFICANT AMOUNTS OF SNOW ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN AN EMERGENCY. IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT... FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY. && $$ WYZ023-290700- /O.UPG.KRIW.WS.A.0017.101229T0700Z-101230T0700Z/ /O.NEW.KRIW.WS.W.0021.101229T0700Z-101230T0700Z/ STAR VALLEY- INCLUDING THE CITIES OF...AFTON...ALPINE...THAYNE 258 PM MST TUE DEC 28 2010 ...WINTER STORM WARNING IN EFFECT FROM MIDNIGHT TONIGHT TO MIDNIGHT MST WEDNESDAY NIGHT... THE NATIONAL WEATHER SERVICE IN RIVERTON HAS ISSUED A WINTER STORM WARNING FOR HEAVY SNOW...WHICH IS IN EFFECT FROM MIDNIGHT TONIGHT TO MIDNIGHT MST WEDNESDAY NIGHT. THE WINTER STORM WATCH IS NO LONGER IN EFFECT. * SUMMARY AND TIMING...SNOW WILL BECOME WIDESPREAD LATE TONIGHT...AND WILL BECOME HEAVY AT TIMES EARLY WEDNESDAY MORNING. SNOW IS EXPECTED TO CONTINUE THROUGH LATE WEDNESDAY EVENING. * SNOW ACCUMULATIONS...SNOWFALL OF 5 TO 7 INCHES IS POSSIBLE BY WEDNESDAY EVENING OVER THE SOUTHERN HALF OF THE VALLEY. HEAVIER SNOWFALL AMOUNTS OF 6 TO 9 INCHES ARE EXPECTED OVER THE NORTHERN HALF OF THE VALLEY. * WIND AND VISIBILITY...SOUTH TO SOUTHWEST WINDS OF 10 TO 20 MPH WITH HIGHER GUSTS COULD CAUSE SOME BLOWING AND DRIFTING SNOW...CREATING POOR VISIBILITIES AT TIMES IN OPEN AREAS. * IMPACTS...TRAVEL THROUGH THE STAR VALLEY IS EXPECTED TO BECOME TREACHEROUS LATE TONIGHT AND WEDNESDAY. THOSE PLANNING OUTDOOR ACTIVITIES SHOULD BE PREPARED FOR DETERIORATING WEATHER CONDITIONS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED OR OCCURRING. SIGNIFICANT AMOUNTS OF SNOW ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN AN EMERGENCY. IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT... FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY. && $$ WYZ001-290700- /O.NEW.KRIW.WW.Y.0045.101229T0700Z-101230T0700Z/ YELLOWSTONE NATIONAL PARK- INCLUDING THE CITIES OF...LAKE...MAMMOTH...OLD FAITHFUL 258 PM MST TUE DEC 28 2010 ...WINTER WEATHER ADVISORY IN EFFECT FROM MIDNIGHT TONIGHT TO MIDNIGHT MST WEDNESDAY NIGHT... THE NATIONAL WEATHER SERVICE IN RIVERTON HAS ISSUED A WINTER WEATHER ADVISORY FOR SNOW AND BLOWING SNOW...WHICH IS IN EFFECT FROM MIDNIGHT TONIGHT TO MIDNIGHT MST WEDNESDAY NIGHT. * SUMMARY AND TIMING...SNOWFALL WILL DEVELOP ACROSS YELLOWSTONE NATIONAL PARK THIS EVENING...AND WILL CONTINUE THROUGH WEDNESDAY EVENING. THE HEAVIEST SNOWFALL IS EXPECTED TO OCCUR DURING THE OVERNIGHT HOURS. * SNOW ACCUMULATIONS...THE SOUTHWESTERN PORTION OF YELLOWSTONE MAY SEE SNOWFALL AMOUNTS OF 10 TO 15 INCHES...HOWEVER THE MAJORITY OF THE PARK WILL SEE SNOWFALL OF 6 TO 10 INCHES THROUGH WEDNESDAY EVENING. * WIND AND VISIBILITY...WIND OF 15 TO 25 MPH ARE ANTICIPATED OVER PORTIONS OF YELLOWSTONE. THIS WIND COULD CREATE BLOWING AND DRIFTING SNOW ALONG WITH LIMITED VISIBILITIES. * IMPACTS...CONDITIONS ACROSS YELLOWSTONE NATIONAL PARK ARE EXPECTED TO BECOME HAZARDOUS LATE TONIGHT AND WEDNESDAY. THOSE PLANNING OUTDOOR ACTIVITIES SHOULD BE PREPARED FOR DETERIORATING WEATHER CONDITIONS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW AND BLOWING SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$ WYZ027-290700- /O.NEW.KRIW.WW.Y.0045.101229T0700Z-101230T0700Z/ SOUTH LINCOLN COUNTY- INCLUDING THE CITIES OF...KEMMERER...COKEVILLE 258 PM MST TUE DEC 28 2010 ...WINTER WEATHER ADVISORY IN EFFECT FROM MIDNIGHT TONIGHT TO MIDNIGHT MST WEDNESDAY NIGHT... THE NATIONAL WEATHER SERVICE IN RIVERTON HAS ISSUED A WINTER WEATHER ADVISORY FOR SNOW AND BLOWING SNOW...WHICH IS IN EFFECT FROM MIDNIGHT TONIGHT TO MIDNIGHT MST WEDNESDAY NIGHT. * SUMMARY AND TIMING...SNOWFALL WILL BEGIN OVER SOUTHERN LINCOLN COUNTY LATE THIS EVENING AND CONTINUE THROUGH WEDNESDAY EVENING. THE HEAVIEST SNOWFALL IS EXPECTED TO OCCUR DURING THE OVERNIGHT HOURS...THOUGH PERIODS OF LIGHT TO MODERATE SNOWFALL WILL CONTINUE THROUGH WEDNESDAY. * SNOW ACCUMULATIONS...SNOWFALL IS EXPECTED TO VARY ACROSS THE AREA WITH THIS EVENT. THE WESTERN PORTION OF SOUTHERN LINCOLN COUNTY...INCLUDING THE AREAS AROUND COKEVILLE ARE EXPECTED TO SEE SNOWFALL OF 3 TO 5 INCHES. SNOWFALL ACCUMULATIONS WILL LESSEN ACROSS THE EASTERN PORTION OF THE AREA...WITH ONLY 1 TO 2 INCHES EXPECTED THROUGH WEDNESDAY EVENING. * WIND AND VISIBILITY...WIND OF 10 TO 20 MPH WITH GUSTS TO AROUND 30 MPH WILL BE POSSIBLE ACROSS THE AREA. THIS WILL CREATE BLOWING AND DRIFTING SNOW...WITH LIMITED VISIBILITIES ON ROADWAYS. * IMPACTS...TRAVEL THROUGH SOUTHERN LINCOLN COUNTY IS EXPECTED TO BECOME HAZARDOUS LATE TONIGHT AND WEDNESDAY. THOSE PLANNING OUTDOOR ACTIVITIES SHOULD BE PREPARED FOR DETERIORATING WEATHER CONDITIONS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW AND BLOWING SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$ WYZ013-290700- /O.NEW.KRIW.WW.Y.0045.101229T0700Z-101230T0700Z/ JACKSON HOLE- INCLUDING THE CITY OF...JACKSON 258 PM MST TUE DEC 28 2010 ...WINTER WEATHER ADVISORY IN EFFECT FROM MIDNIGHT TONIGHT TO MIDNIGHT MST WEDNESDAY NIGHT... THE NATIONAL WEATHER SERVICE IN RIVERTON HAS ISSUED A WINTER WEATHER ADVISORY FOR SNOWFALL...WHICH IS IN EFFECT FROM MIDNIGHT TONIGHT TO MIDNIGHT MST WEDNESDAY NIGHT. * SUMMARY AND TIMING...SNOWFALL WILL BEGIN OVER SOUTHERN LINCOLN COUNTY LATE THIS EVENING AND CONTINUE THROUGH WEDNESDAY EVENING. THE HEAVIEST SNOWFALL IS EXPECTED TO OCCUR DURING THE OVERNIGHT HOURS...THOUGH PERIODS OF LIGHT TO MODERATE SNOWFALL WILL CONTINUE THROUGH WEDNESDAY. * SNOW ACCUMULATIONS...SNOWFALL IS EXPECTED TO VARY ACROSS THE AREA WITH THIS EVENT. THE SOUTHERN HALF OF THE VALLEY INCLUDING THE CITY OF JACKSON ARE EXPECTED TO SEE SNOWFALL OF 3 TO 6 INCHES. SNOWFALL ACCUMULATIONS WILL INCREASE MOVING NORTH THROUGH THE VALLEY WITH 5 TO 8 INCHES EXPECTED THROUGH WEDNESDAY EVENING ACROSS THE NORTHERN HALF OF THE VALLEY. * WIND AND VISIBILITY...WIND OF 10 TO 15 MPH WITH GUSTS TO AROUND 20 MPH WILL BE POSSIBLE ACROSS THE VALLEY. THIS INCREASED WIND MAY CREATE BLOWING AND DRIFTING SNOW WHICH MAY LIMIT VISIBILITIES ON ROADWAYS. * IMPACTS...TRAVEL THROUGH SOUTHERN JACKSON VALLEY IS EXPECTED TO BECOME HAZARDOUS LATE TONIGHT AND WEDNESDAY. THOSE PLANNING OUTDOOR ACTIVITIES SHOULD BE PREPARED FOR DETERIORATING WEATHER CONDITIONS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW AND BLOWING SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$ BRANHAM
13 follow-up statements
402 WWUS45 KRIW 282305 CCA WSWRIW URGENT - WINTER WEATHER MESSAGE...CORRECTED NATIONAL WEATHER SERVICE RIVERTON WY 401 PM MST TUE DEC 28 2010 ...SIGNIFICANT SNOWFALL RETURNS TO WESTERN WYOMING LATE TONIGHT AND WEDNESDAY... .A PACIFIC STORM SYSTEM WILL MOVE INTO THE CENTRAL GREAT BASIN TONIGHT INTO WEDNESDAY AND IS EXPECTED TO BRING PERIODS OF HEAVY SNOWFALL TO WESTERN WYOMING LATE TONIGHT THROUGH WEDNESDAY EVENING. GUSTY SOUTH TO SOUTHWEST WINDS COULD ALSO CREATE AREAS OF BLOWING SNOW. WYZ012-290830- /O.UPG.KRIW.WS.A.0017.101229T0700Z-101230T0700Z/ /O.NEW.KRIW.WS.W.0021.101229T0700Z-101230T0700Z/ TETON AND GROS VENTRE MOUNTAINS- 401 PM MST TUE DEC 28 2010 ...WINTER STORM WARNING IN EFFECT FROM MIDNIGHT TONIGHT TO MIDNIGHT MST WEDNESDAY NIGHT... THE NATIONAL WEATHER SERVICE IN RIVERTON HAS ISSUED A WINTER STORM WARNING FOR HEAVY SNOW...WHICH IS IN EFFECT FROM MIDNIGHT TONIGHT TO MIDNIGHT MST WEDNESDAY NIGHT. THE WINTER STORM WATCH IS NO LONGER IN EFFECT. * SUMMARY AND TIMING...SNOW WILL BECOME WIDESPREAD LATE THIS EVENING...BECOMING HEAVY AT TIMES EARLY WEDNESDAY MORNING. THE SNOW IS EXPECTED TO CONTINUE THROUGH LATE WEDNESDAY EVENING. * SNOW ACCUMULATIONS...SNOWFALL OF 10 TO 15 INCHES IS POSSIBLE BY WEDNESDAY EVENING. * WIND AND VISIBILITY...SOUTH TO SOUTHWEST WINDS OF 20 TO 35 MPH WITH HIGHER GUSTS COULD CAUSE SIGNIFICANT BLOWING AND DRIFTING SNOW...CREATING NEAR WHITEOUT CONDITIONS...ESPECIALLY AT PASS AND SUMMIT ELEVATIONS. * IMPACTS...TRAVEL OVER TETON AND TOGWOTEE PASSES ARE EXPECTED TO BECOME SNOWPACKED AND TREACHEROUS LATE TONIGHT AND WEDNESDAY. THOSE PLANNING OUTDOOR ACTIVITIES SHOULD BE PREPARED FOR DETERIORATING WEATHER CONDITIONS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED OR OCCURRING. SIGNIFICANT AMOUNTS OF SNOW ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN AN EMERGENCY. IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT... FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY. && $$ WYZ024-290830- /O.UPG.KRIW.WS.A.0017.101229T0700Z-101230T0700Z/ /O.NEW.KRIW.WS.W.0021.101229T0700Z-101230T0700Z/ SALT RIVER AND WYOMING RANGES- 401 PM MST TUE DEC 28 2010 ...WINTER STORM WARNING IN EFFECT FROM MIDNIGHT TONIGHT TO MIDNIGHT MST WEDNESDAY NIGHT... THE NATIONAL WEATHER SERVICE IN RIVERTON HAS ISSUED A WINTER STORM WARNING FOR HEAVY SNOW...WHICH IS IN EFFECT FROM MIDNIGHT TONIGHT TO MIDNIGHT MST WEDNESDAY NIGHT. THE WINTER STORM WATCH IS NO LONGER IN EFFECT. * SUMMARY AND TIMING...SNOW IS EXPECTED TO BECOME WIDESPREAD LATE THIS EVENING AND WILL BECOME HEAVY AT TIMES EARLY WEDNESDAY MORNING. SNOW WILL CONTINUE THROUGH LATE WEDNESDAY EVENING. * SNOW ACCUMULATIONS...SNOWFALL OF 10 TO 18 INCHES IS POSSIBLE BY LATE WEDNESDAY EVENING. * WIND AND VISIBILITY...SOUTH TO SOUTHWEST WINDS OF 20 TO 35 MPH WITH HIGHER GUSTS COULD CAUSE SIGNIFICANT BLOWING AND DRIFTING SNOW...CREATING NEAR WHITEOUT CONDITIONS...ESPECIALLY AT PASS AND SUMMIT ELEVATIONS. * IMPACTS...TRAVEL OVER SALT RIVER PASS IS EXPECTED TO BECOME SNOWPACKED AND TREACHEROUS LATE TONIGHT AND WEDNESDAY. THOSE PLANNING OUTDOOR ACTIVITIES SHOULD BE PREPARED FOR DETERIORATING WEATHER CONDITIONS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED OR OCCURRING. SIGNIFICANT AMOUNTS OF SNOW ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN AN EMERGENCY. IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT... FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY. && $$ WYZ023-290830- /O.UPG.KRIW.WS.A.0017.101229T0700Z-101230T0700Z/ /O.NEW.KRIW.WS.W.0021.101229T0700Z-101230T0700Z/ STAR VALLEY- INCLUDING THE CITIES OF...AFTON...ALPINE...THAYNE 401 PM MST TUE DEC 28 2010 ...WINTER STORM WARNING IN EFFECT FROM MIDNIGHT TONIGHT TO MIDNIGHT MST WEDNESDAY NIGHT... THE NATIONAL WEATHER SERVICE IN RIVERTON HAS ISSUED A WINTER STORM WARNING FOR HEAVY SNOW...WHICH IS IN EFFECT FROM MIDNIGHT TONIGHT TO MIDNIGHT MST WEDNESDAY NIGHT. THE WINTER STORM WATCH IS NO LONGER IN EFFECT. * SUMMARY AND TIMING...SNOW WILL BECOME WIDESPREAD LATE TONIGHT...AND WILL BECOME HEAVY AT TIMES EARLY WEDNESDAY MORNING. SNOW IS EXPECTED TO CONTINUE THROUGH LATE WEDNESDAY EVENING. * SNOW ACCUMULATIONS...SNOWFALL OF 5 TO 7 INCHES IS POSSIBLE BY WEDNESDAY EVENING OVER THE SOUTHERN HALF OF THE VALLEY. HEAVIER SNOWFALL AMOUNTS OF 6 TO 9 INCHES ARE EXPECTED OVER THE NORTHERN HALF OF THE VALLEY. * WIND AND VISIBILITY...SOUTH TO SOUTHWEST WINDS OF 10 TO 20 MPH WITH HIGHER GUSTS COULD CAUSE SOME BLOWING AND DRIFTING SNOW...CREATING POOR VISIBILITIES AT TIMES IN OPEN AREAS. * IMPACTS...TRAVEL THROUGH THE STAR VALLEY IS EXPECTED TO BECOME TREACHEROUS LATE TONIGHT AND WEDNESDAY. THOSE PLANNING OUTDOOR ACTIVITIES SHOULD BE PREPARED FOR DETERIORATING WEATHER CONDITIONS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED OR OCCURRING. SIGNIFICANT AMOUNTS OF SNOW ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN AN EMERGENCY. IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT... FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY. && $$ WYZ001-290830- /O.NEW.KRIW.WW.Y.0045.101229T0700Z-101230T0700Z/ YELLOWSTONE NATIONAL PARK- INCLUDING THE CITIES OF...LAKE...MAMMOTH...OLD FAITHFUL 401 PM MST TUE DEC 28 2010 ...WINTER WEATHER ADVISORY IN EFFECT FROM MIDNIGHT TONIGHT TO MIDNIGHT MST WEDNESDAY NIGHT... THE NATIONAL WEATHER SERVICE IN RIVERTON HAS ISSUED A WINTER WEATHER ADVISORY FOR SNOW AND BLOWING SNOW...WHICH IS IN EFFECT FROM MIDNIGHT TONIGHT TO MIDNIGHT MST WEDNESDAY NIGHT. * SUMMARY AND TIMING...SNOWFALL WILL DEVELOP ACROSS YELLOWSTONE NATIONAL PARK THIS EVENING...AND WILL CONTINUE THROUGH WEDNESDAY EVENING. THE HEAVIEST SNOWFALL IS EXPECTED TO OCCUR DURING THE OVERNIGHT HOURS. * SNOW ACCUMULATIONS...THE SOUTHWESTERN PORTION OF YELLOWSTONE MAY SEE SNOWFALL AMOUNTS OF 10 TO 15 INCHES...HOWEVER THE MAJORITY OF THE PARK WILL SEE SNOWFALL OF 6 TO 10 INCHES THROUGH WEDNESDAY EVENING. * WIND AND VISIBILITY...WIND OF 15 TO 25 MPH ARE ANTICIPATED OVER PORTIONS OF YELLOWSTONE. THIS WIND COULD CREATE BLOWING AND DRIFTING SNOW ALONG WITH LIMITED VISIBILITIES. * IMPACTS...CONDITIONS ACROSS YELLOWSTONE NATIONAL PARK ARE EXPECTED TO BECOME HAZARDOUS LATE TONIGHT AND WEDNESDAY. THOSE PLANNING OUTDOOR ACTIVITIES SHOULD BE PREPARED FOR DETERIORATING WEATHER CONDITIONS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW AND BLOWING SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$ WYZ027-290830- /O.NEW.KRIW.WW.Y.0045.101229T0700Z-101230T0700Z/ SOUTH LINCOLN COUNTY- INCLUDING THE CITIES OF...KEMMERER...COKEVILLE 401 PM MST TUE DEC 28 2010 ...WINTER WEATHER ADVISORY IN EFFECT FROM MIDNIGHT TONIGHT TO MIDNIGHT MST WEDNESDAY NIGHT... THE NATIONAL WEATHER SERVICE IN RIVERTON HAS ISSUED A WINTER WEATHER ADVISORY FOR SNOW AND BLOWING SNOW...WHICH IS IN EFFECT FROM MIDNIGHT TONIGHT TO MIDNIGHT MST WEDNESDAY NIGHT. * SUMMARY AND TIMING...SNOWFALL WILL BEGIN OVER SOUTHERN LINCOLN COUNTY LATE THIS EVENING AND CONTINUE THROUGH WEDNESDAY EVENING. THE HEAVIEST SNOWFALL IS EXPECTED TO OCCUR DURING THE OVERNIGHT HOURS...THOUGH PERIODS OF LIGHT TO MODERATE SNOWFALL WILL CONTINUE THROUGH WEDNESDAY. * SNOW ACCUMULATIONS...SNOWFALL IS EXPECTED TO VARY ACROSS THE AREA WITH THIS EVENT. THE WESTERN PORTION OF SOUTHERN LINCOLN COUNTY...INCLUDING THE AREAS AROUND COKEVILLE ARE EXPECTED TO SEE SNOWFALL OF 3 TO 5 INCHES. SNOWFALL ACCUMULATIONS WILL LESSEN ACROSS THE EASTERN PORTION OF THE AREA...WITH ONLY 1 TO 2 INCHES EXPECTED THROUGH WEDNESDAY EVENING. * WIND AND VISIBILITY...WIND OF 10 TO 20 MPH WITH GUSTS TO AROUND 30 MPH WILL BE POSSIBLE ACROSS THE AREA. THIS WILL CREATE BLOWING AND DRIFTING SNOW...WITH LIMITED VISIBILITIES ON ROADWAYS. * IMPACTS...TRAVEL THROUGH SOUTHERN LINCOLN COUNTY IS EXPECTED TO BECOME HAZARDOUS LATE TONIGHT AND WEDNESDAY. THOSE PLANNING OUTDOOR ACTIVITIES SHOULD BE PREPARED FOR DETERIORATING WEATHER CONDITIONS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW AND BLOWING SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$ WYZ013-290830- /O.COR.KRIW.WW.Y.0045.101229T0700Z-101230T0700Z/ JACKSON HOLE- INCLUDING THE CITY OF...JACKSON 401 PM MST TUE DEC 28 2010 ...WINTER WEATHER ADVISORY IN EFFECT FROM MIDNIGHT TONIGHT TO MIDNIGHT MST WEDNESDAY NIGHT... THE NATIONAL WEATHER SERVICE IN RIVERTON HAS ISSUED A WINTER WEATHER ADVISORY FOR SNOWFALL...WHICH IS IN EFFECT FROM MIDNIGHT TONIGHT TO MIDNIGHT MST WEDNESDAY NIGHT. * SUMMARY AND TIMING...SNOWFALL WILL BEGIN OVER JACKSON HOLE LATE THIS EVENING AND CONTINUE THROUGH WEDNESDAY EVENING. THE HEAVIEST SNOWFALL IS EXPECTED TO OCCUR FROM 3 AM TO NOON WEDNESDAY. HOWEVER...PERIODS OF LIGHT TO MODERATE SNOWFALL WILL CONTINUE THROUGH WEDNESDAY EVENING. * SNOW ACCUMULATIONS...SNOWFALL IS EXPECTED TO VARY ACROSS THE AREA WITH THIS EVENT. THE SOUTHERN HALF OF THE VALLEY INCLUDING THE CITY OF JACKSON ARE EXPECTED TO SEE SNOWFALL OF 3 TO 6 INCHES. SNOWFALL ACCUMULATIONS WILL INCREASE MOVING NORTH THROUGH THE VALLEY WITH 5 TO 8 INCHES EXPECTED NEAR MOOSE AND MORAN THROUGH WEDNESDAY EVENING. * WIND AND VISIBILITY...WIND OF 10 TO 15 MPH WITH GUSTS TO AROUND 20 MPH WILL BE POSSIBLE ACROSS THE VALLEY. THIS INCREASED WIND MAY CREATE BLOWING AND DRIFTING SNOW WHICH MAY LIMIT VISIBILITIES ON ROADWAYS. * IMPACTS...TRAVEL THROUGH SOUTHERN JACKSON VALLEY IS EXPECTED TO BECOME HAZARDOUS LATE TONIGHT AND WEDNESDAY. THOSE PLANNING OUTDOOR ACTIVITIES SHOULD BE PREPARED FOR DETERIORATING WEATHER CONDITIONS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW AND BLOWING SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$ BRANHAM
915 WWUS45 KRIW 291139 WSWRIW URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE RIVERTON WY 439 AM MST WED DEC 29 2010 ...SIGNIFICANT SNOWFALL RETURNS TO WESTERN WYOMING TODAY AND THEN WILL LIKELY SHIFT TO CENTRAL WYOMING EAST OF THE DIVIDE LATE TONIGHT AND CONTINUE THROUGH THURSDAY AND THURSDAY NIGHT... .A PACIFIC STORM SYSTEM WILL MOVE INTO THE CENTRAL GREAT BASIN TODAY AND IS EXPECTED TO BRING PERIODS OF HEAVY SNOWFALL TO WESTERN WYOMING THROUGH THIS EVENING. GUSTY SOUTH TO SOUTHWEST WINDS COULD ALSO CREATE AREAS OF BLOWING SNOW. THEN AN ASSOCIATED TROUGH OF LOW PRESSURE WILL TRACK EAST ACROSS THE ROCKY MOUNTAINS AND AN ASSOCIATED STRONG COLD FRONT WILL TRACK SOUTH ACROSS WYOMING TONIGHT RESULTING IN DEVELOPING SNOWFALL EAST OF THE DIVIDE TONIGHT. THE MAIN LOW PRESSURE CENTER WILL THEN BECOME MORE ORGANIZED EAST OF THE DIVIDE LATE TONIGHT. THIS WILL RESULT IN A POTENTIAL FOR PERIODS OF HEAVY SNOW ALONG ACROSS PORTIONS OF CENTRAL WYOMING EAST OF THE DIVIDE LATE TONIGHT THROUGH THURSDAY AND THURSDAY NIGHT. IN ADDITION...STRONG NORTH TO EAST WINDS MAY CAUSE BLOWING AND DRIFTING SNOW DURING ACROSS SOME AREAS EAST OF THE DIVIDE LATE TONIGHT THROUGH THURSDAY NIGHT. WYZ012-291945- /O.CON.KRIW.WS.W.0021.000000T0000Z-101230T0700Z/ TETON AND GROS VENTRE MOUNTAINS- 439 AM MST WED DEC 29 2010 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL MIDNIGHT MST TONIGHT... A WINTER STORM WARNING REMAINS IN EFFECT TODAY THROUGH MIDNIGHT TONIGHT. * SUMMARY AND TIMING...SNOW WILL BECOME MORE WIDESPREAD EARLY THIS MORNING...BECOMING HEAVY AT TIMES. THE SNOW IS EXPECTED TO CONTINUE THROUGH LATE THIS EVENING. * SNOW ACCUMULATIONS...SNOWFALL OF 10 TO 15 INCHES IS POSSIBLE BY LATE THIS EVENING. * WIND AND VISIBILITY...SOUTH TO SOUTHWEST WINDS OF 20 TO 35 MPH WITH HIGHER GUSTS COULD CAUSE SIGNIFICANT BLOWING AND DRIFTING SNOW...CREATING NEAR WHITEOUT CONDITIONS...ESPECIALLY AT PASS AND SUMMIT ELEVATIONS. * IMPACTS...TRAVEL OVER TETON AND TOGWOTEE PASSES ARE EXPECTED TO BECOME SNOWPACKED AND TREACHEROUS TODAY. THOSE PLANNING OUTDOOR ACTIVITIES SHOULD BE PREPARED FOR DETERIORATING WEATHER CONDITIONS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED OR OCCURRING. SIGNIFICANT AMOUNTS OF SNOW ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN AN EMERGENCY. IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT... FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY. && $$ WYZ024-291945- /O.CON.KRIW.WS.W.0021.000000T0000Z-101230T0700Z/ SALT RIVER AND WYOMING RANGES- 439 AM MST WED DEC 29 2010 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL MIDNIGHT MST TONIGHT... A WINTER STORM WARNING REMAINS IN EFFECT THROUGH MIDNIGHT TONIGHT. * SUMMARY AND TIMING...SNOW IS EXPECTED TO BECOME WIDESPREAD EARLY THIS MORNING AND WILL BECOME HEAVY AT TIMES. SNOW WILL CONTINUE THROUGH LATE THIS EVENING. * SNOW ACCUMULATIONS...SNOWFALL OF 10 TO 18 INCHES IS POSSIBLE BY LATE THIS EVENING. * WIND AND VISIBILITY...SOUTH TO SOUTHWEST WINDS OF 20 TO 35 MPH WITH HIGHER GUSTS COULD CAUSE SIGNIFICANT BLOWING AND DRIFTING SNOW...CREATING NEAR WHITEOUT CONDITIONS...ESPECIALLY AT PASS AND SUMMIT ELEVATIONS. * IMPACTS...TRAVEL OVER SALT RIVER PASS IS EXPECTED TO BECOME SNOWPACKED AND TREACHEROUS TODAY. THOSE PLANNING OUTDOOR ACTIVITIES SHOULD BE PREPARED FOR DETERIORATING WEATHER CONDITIONS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED OR OCCURRING. SIGNIFICANT AMOUNTS OF SNOW ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN AN EMERGENCY. IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT... FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY. && $$ WYZ023-291945- /O.CON.KRIW.WS.W.0021.000000T0000Z-101230T0700Z/ STAR VALLEY- INCLUDING THE CITIES OF...AFTON...ALPINE...THAYNE 439 AM MST WED DEC 29 2010 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL MIDNIGHT MST TONIGHT... A WINTER STORM WARNING REMAINS IN EFFECT THROUGH MIDNIGHT TONIGHT. * SUMMARY AND TIMING...SNOW WILL BECOME WIDESPREAD EARLY THIS MORNING...AND WILL BECOME HEAVY AT TIMES. SNOW IS EXPECTED TO CONTINUE THROUGH LATE THIS EVENING. * SNOW ACCUMULATIONS...SNOWFALL OF 5 TO 7 INCHES IS POSSIBLE BY LATE THIS EVENING OVER THE SOUTHERN HALF OF THE VALLEY. HEAVIER SNOWFALL AMOUNTS OF 6 TO 9 INCHES ARE EXPECTED OVER THE NORTHERN HALF OF THE VALLEY. * WIND AND VISIBILITY...SOUTH TO SOUTHWEST WINDS OF 10 TO 20 MPH WITH HIGHER GUSTS COULD CAUSE SOME BLOWING AND DRIFTING SNOW...CREATING POOR VISIBILITIES AT TIMES IN OPEN AREAS. * IMPACTS...TRAVEL THROUGH THE STAR VALLEY IS EXPECTED TO BECOME TREACHEROUS TODAY. THOSE PLANNING OUTDOOR ACTIVITIES SHOULD BE PREPARED FOR DETERIORATING WEATHER CONDITIONS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED OR OCCURRING. SIGNIFICANT AMOUNTS OF SNOW ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN AN EMERGENCY. IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT... FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY. && $$ WYZ014-291945- /O.EXA.KRIW.WW.Y.0045.000000T0000Z-101230T0700Z/ WIND RIVER MOUNTAINS WEST- 439 AM MST WED DEC 29 2010 ...WINTER WEATHER ADVISORY IN EFFECT UNTIL MIDNIGHT MST TONIGHT... THE NATIONAL WEATHER SERVICE IN RIVERTON HAS ISSUED A WINTER WEATHER ADVISORY FOR THE WEST SLOPE OF THE WIND RIVER MOUNTAINS WHICH IS IN EFFECT UNTIL MIDNIGHT MST TONIGHT. * SUMMARY AND TIMING...SNOWFALL WILL INCREASE IN INTENSITY THIS MORNING...BECOMING HEAVY AT TIMES. SNOW IS EXPECTED TO CONTINUE THROUGH LATE THIS EVENING. * SNOW ACCUMULATIONS...6 TO 12 INCHES OF SNOW IS EXPECTED BY LATE THIS EVENING. 3 TO 6 INCHES OF SNOW IS EXPECTED OVER SOUTH PASS. * WIND AND VISIBILITY...WEST SOUTHWEST WINDS OF 40 TO 50 MPH WITH GUSTS TO 60 TO 65 MPH CAN BE EXPECTED TODAY AT TIMES OVER SOUTH PASS CAUSING OCCASIONAL NEAR ZERO VISIBILITY IN BLOWING SNOW CREATING OCCASIONAL WHITE OUT CONDITIONS. LESSER WIND SPEEDS WILL OCCUR ACROSS THE REST OF THE MOUNTAIN RANGE. * IMPACTS...TRAVEL ACROSS SOUTH PASS ON HIGHWAY 28 WILL BECOME TREACHEROUS TODAY WITH BLOWING AND DRIFTING SNOW EXPECTED...IN ADDITION TO THE FALLING SNOW...CAUSING OCCASIONAL WHITE OUT CONDITIONS. THOSE PLANNING OUTDOOR ACTIVITIES SHOULD BE PREPARED FOR DETERIORATING WEATHER CONDITIONS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW AND BLOWING SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$ WYZ025-291945- /O.EXA.KRIW.WW.Y.0045.000000T0000Z-101230T0700Z/ UPPER GREEN RIVER BASIN FOOTHILLS- INCLUDING THE CITY OF...PINEDALE 439 AM MST WED DEC 29 2010 ...WINTER WEATHER ADVISORY IN EFFECT UNTIL MIDNIGHT MST TONIGHT... THE NATIONAL WEATHER SERVICE IN RIVERTON HAS ISSUED A WINTER WEATHER ADVISORY FOR THE UPPER GREEN RIVER BASIN WHICH IS IN EFFECT UNTIL MIDNIGHT MST TONIGHT. * SUMMARY AND TIMING...SNOWFALL WILL INCREASE IN INTENSITY TODAY AND CONTINUE...HEAVY AT TIMES...THROUGH LATE THIS EVENING. * SNOW ACCUMULATIONS...SNOWFALL IS EXPECTED TO VARY ACROSS THE AREA WITH THIS EVENT. 3 INCHES OF SNOW IS EXPECTED IN PINEDALE WITH AROUND 5 INCHES EXPECTED IN BONDURANT BY LATE THIS EVENING. * WIND AND VISIBILITY...WIND OF 10 TO 15 MPH WITH GUSTS TO AROUND 25 MPH WILL BE POSSIBLE ACROSS THE AREA. THIS INCREASED WIND MAY CREATE BLOWING AND DRIFTING SNOW WHICH MAY LIMIT VISIBILITIES ON ROADWAYS. * IMPACTS...TRAVEL THROUGH THE UPPER GREEN RIVER BASIN IS EXPECTED TO BECOME HAZARDOUS TODAY. THOSE PLANNING OUTDOOR ACTIVITIES SHOULD BE PREPARED FOR DETERIORATING WEATHER CONDITIONS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW AND BLOWING SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$ WYZ001-291945- /O.CON.KRIW.WW.Y.0045.000000T0000Z-101230T0700Z/ YELLOWSTONE NATIONAL PARK- INCLUDING THE CITIES OF...LAKE...MAMMOTH...OLD FAITHFUL 439 AM MST WED DEC 29 2010 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT MST TONIGHT... A WINTER WEATHER ADVISORY REMAINS IN EFFECT THROUGH MIDNIGHT TONIGHT. * SUMMARY AND TIMING...SNOWFALL WILL CONTINUE TODAY THROUGH LATE THIS EVENING ACROSS YELLOWSTONE PARK. THE HEAVIEST SNOWFALL IS EXPECTED TO OCCUR EARLY THIS MORNING. * SNOW ACCUMULATIONS...THE SOUTHWESTERN PORTION OF YELLOWSTONE MAY SEE SNOWFALL AMOUNTS OF 10 TO 15 INCHES...HOWEVER THE MAJORITY OF THE PARK WILL SEE SNOWFALL OF 6 TO 10 INCHES THROUGH LATE THIS EVENING. * WIND AND VISIBILITY...WIND OF 15 TO 25 MPH ARE ANTICIPATED OVER PORTIONS OF YELLOWSTONE. THIS WIND COULD CREATE BLOWING AND DRIFTING SNOW ALONG WITH LIMITED VISIBILITIES. * IMPACTS...CONDITIONS ACROSS YELLOWSTONE NATIONAL PARK ARE EXPECTED TO BECOME HAZARDOUS TODAY. THOSE PLANNING OUTDOOR ACTIVITIES SHOULD BE PREPARED FOR DETERIORATING WEATHER CONDITIONS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW AND BLOWING SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$ WYZ027-291945- /O.CON.KRIW.WW.Y.0045.000000T0000Z-101230T0700Z/ SOUTH LINCOLN COUNTY- INCLUDING THE CITIES OF...KEMMERER...COKEVILLE 439 AM MST WED DEC 29 2010 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT MST TONIGHT... A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT MST TONIGHT. * SUMMARY AND TIMING...SNOWFALL WILL BEGIN OVER SOUTHERN LINCOLN COUNTY LATE THIS EVENING AND CONTINUE THROUGH WEDNESDAY EVENING. THE HEAVIEST SNOWFALL IS EXPECTED TO OCCUR DURING THE OVERNIGHT HOURS...THOUGH PERIODS OF LIGHT TO MODERATE SNOWFALL WILL CONTINUE THROUGH WEDNESDAY. * SNOW ACCUMULATIONS...SNOWFALL IS EXPECTED TO VARY ACROSS THE AREA WITH THIS EVENT. THE WESTERN PORTION OF SOUTHERN LINCOLN COUNTY...INCLUDING THE AREAS AROUND COKEVILLE ARE EXPECTED TO SEE SNOWFALL OF 3 TO 5 INCHES. SNOWFALL ACCUMULATIONS WILL LESSEN ACROSS THE EASTERN PORTION OF THE AREA...WITH ONLY 1 TO 2 INCHES EXPECTED THROUGH WEDNESDAY EVENING. * WIND AND VISIBILITY...WIND OF 10 TO 20 MPH WITH GUSTS TO AROUND 30 MPH WILL BE POSSIBLE ACROSS THE AREA. THIS WILL CREATE BLOWING AND DRIFTING SNOW...WITH LIMITED VISIBILITIES ON ROADWAYS. * IMPACTS...TRAVEL THROUGH SOUTHERN LINCOLN COUNTY IS EXPECTED TO BECOME HAZARDOUS LATE TONIGHT AND WEDNESDAY. THOSE PLANNING OUTDOOR ACTIVITIES SHOULD BE PREPARED FOR DETERIORATING WEATHER CONDITIONS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW AND BLOWING SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$ WYZ013-291945- /O.CON.KRIW.WW.Y.0045.000000T0000Z-101230T0700Z/ JACKSON HOLE- INCLUDING THE CITY OF...JACKSON 439 AM MST WED DEC 29 2010 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT MST TONIGHT... A WINTER WEATHER ADVISORY REMAINS IN EFFECT THROUGH MIDNIGHT TONIGHT. * SUMMARY AND TIMING...SNOWFALL WILL CONTINUE OVER JACKSON HOLE THROUGH TODAY AND THIS EVENING. THE HEAVIEST SNOWFALL IS EXPECTED TO OCCUR THIS MORNING THROUGH NOON TODAY. HOWEVER...PERIODS OF LIGHT TO MODERATE SNOWFALL WILL CONTINUE THROUGH THIS EVENING. * SNOW ACCUMULATIONS...SNOWFALL IS EXPECTED TO VARY ACROSS THE AREA WITH THIS EVENT. THE SOUTHERN HALF OF THE VALLEY INCLUDING THE CITY OF JACKSON ARE EXPECTED TO SEE SNOWFALL OF 3 TO 6 INCHES. SNOWFALL ACCUMULATIONS WILL INCREASE MOVING NORTH THROUGH THE VALLEY WITH 5 TO 8 INCHES EXPECTED NEAR MOOSE AND MORAN THROUGH LATE THIS EVENING. * WIND AND VISIBILITY...WIND OF 10 TO 15 MPH WITH GUSTS TO AROUND 20 MPH WILL BE POSSIBLE ACROSS THE VALLEY. THIS INCREASED WIND MAY CREATE BLOWING AND DRIFTING SNOW WHICH MAY LIMIT VISIBILITIES ON ROADWAYS. * IMPACTS...TRAVEL THROUGH SOUTHERN JACKSON VALLEY IS EXPECTED TO BECOME HAZARDOUS TODAY. THOSE PLANNING OUTDOOR ACTIVITIES SHOULD BE PREPARED FOR DETERIORATING WEATHER CONDITIONS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW AND BLOWING SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$ WYZ028>030-291945- /O.NEW.KRIW.WS.A.0018.101230T0700Z-101231T1200Z/ ROCK SPRINGS AND GREEN RIVER-FLAMING GORGE-EAST SWEETWATER COUNTY- INCLUDING THE CITIES OF...ROCK SPRINGS...GREEN RIVER...WAMSUTTER 439 AM MST WED DEC 29 2010 ...WINTER STORM WATCH IN EFFECT FROM LATE TONIGHT THROUGH LATE THURSDAY NIGHT... THE NATIONAL WEATHER SERVICE IN RIVERTON HAS ISSUED A WINTER STORM WATCH...WHICH IS IN EFFECT FROM LATE TONIGHT THROUGH LATE THURSDAY NIGHT. * SUMMARY AND TIMING...PERIODS OF LIGHT SNOW WILL OCCUR TODAY THROUGH THIS EVENING. THEN SNOW MAY BECOME HEAVY AT TIMES AFTER MIDNIGHT TONIGHT AND CONTINUE THROUGH THURSDAY AND THURSDAY NIGHT. * SNOW ACCUMULATIONS...3 TO 6 INCHES MAY ACCUMULATE BY LATE THURSDAY NIGHT. * WIND AND VISIBILITY...STRONG WEST WINDS OF 20 TO 30 MPH WITH GUST OF 40 MPH MAY RESULT IN CONSIDERABLE BLOWING AND DRIFTING SNOW LATE TONIGHT ALONG WITH POSSIBLE WHITE OUT CONDITIONS. THESE WINDS WILL SHIFT TO THE EAST NORTHEAST BY 9 AM THURSDAY AT SIMILAR SPEEDS OF 20 TO 30 MPH WITH GUSTS TO 35 MPH CONTINUING THE POTENTIAL FOR CONSIDERABLE BLOWING AND DRIFTING SNOW THROUGH THURSDAY NIGHT ALONG WITH POSSIBLE WHITE OUT CONDITIONS. * IMPACTS...TRAVEL ACROSS SWEETWATER COUNTY...INCLUDING INTERSTATE 80...MAY BECOME HAZARDOUS LATE TONIGHT. THOSE PLANNING OUTDOOR ACTIVITIES SHOULD BE PREPARED FOR DETERIORATING WEATHER CONDITIONS. PRECAUTIONARY/PREPAREDNESS ACTIONS... REMEMBER...A WINTER STORM WATCH MEANS CONDITIONS ARE FAVORABLE FOR HAZARDOUS WINTER WEATHER IN AND CLOSE TO THE WATCH AREA. && $$ WYZ019-291945- /O.NEW.KRIW.WS.A.0018.101230T0700Z-101231T1200Z/ GREEN MOUNTAINS AND RATTLESNAKE RANGE- INCLUDING THE CITY OF...JEFFREY CITY 439 AM MST WED DEC 29 2010 ...WINTER STORM WATCH IN EFFECT FROM LATE TONIGHT THROUGH LATE THURSDAY NIGHT... THE NATIONAL WEATHER SERVICE IN RIVERTON HAS ISSUED A WINTER STORM WATCH...WHICH IS IN EFFECT FROM LATE TONIGHT THROUGH LATE THURSDAY NIGHT. * SUMMARY AND TIMING...LIGHT SNOW WILL DEVELOP THIS EVENING. SNOWFALL MAY BECOME HEAVY AT TIMES AFTER MIDNIGHT TONIGHT AND COULD CONTINUE THROUGH THURSDAY THROUGH THURSDAY NIGHT. * SNOW ACCUMULATIONS...5 TO 10 INCHES MAY ACCUMULATE BY LATE THURSDAY NIGHT. * WIND AND VISIBILITY...NORTH TO NORTHEAST WINDS OF 20 TO 30 MPH WITH GUSTS TO 40 MPH MAY CAUSE SIGNIFICANT BLOWING AND DRIFTING SNOW...ALONG WITH POSSIBLE WHITE OUT CONDITIONS. * IMPACTS...TRAVEL ACROSS THE GREEN MOUNTAINS...INCLUDING HIGHWAY 287 THROUGH SWEETWATER STATION AND JEFFREY CITY...MAY BECOME HAZARDOUS LATE TONIGHT. THOSE PLANNING OUTDOOR ACTIVITIES SHOULD BE PREPARED FOR DETERIORATING WEATHER CONDITIONS. PRECAUTIONARY/PREPAREDNESS ACTIONS... REMEMBER...A WINTER STORM WATCH MEANS CONDITIONS ARE FAVORABLE FOR HAZARDOUS WINTER WEATHER IN AND CLOSE TO THE WATCH AREA. && $$ WYZ015-018-291945- /O.NEW.KRIW.WS.A.0018.101230T0700Z-101231T1200Z/ WIND RIVER MOUNTAINS EAST-LANDER FOOTHILLS- INCLUDING THE CITY OF...LANDER 439 AM MST WED DEC 29 2010 ...WINTER STORM WATCH IN EFFECT FROM LATE TONIGHT THROUGH LATE THURSDAY NIGHT... THE NATIONAL WEATHER SERVICE IN RIVERTON HAS ISSUED A WINTER STORM WATCH...WHICH IS IN EFFECT FROM LATE TONIGHT THROUGH LATE THURSDAY NIGHT. * SUMMARY AND TIMING...LIGHT SNOW WILL DEVELOP THIS EVENING. SNOWFALL MAY BECOME HEAVY AT TIMES AFTER MIDNIGHT TONIGHT AND COULD CONTINUE THROUGH THURSDAY THROUGH THURSDAY NIGHT. * SNOW ACCUMULATIONS...10 TO 14 INCHES OF SNOWFALL MAY ACCUMULATE BY LATE THURSDAY NIGHT IN THE LANDER AREA ALONG WITH 12 TO 18 INCHES ACROSS THE ADJACENT EAST SLOPE OF THE WIND RIVER MOUNTAINS. * WIND AND VISIBILITY...NORTH TO NORTHEAST WINDS OF 20 TO 30 MPH WITH GUSTS TO 35 MPH MAY CAUSE SIGNIFICANT BLOWING AND DRIFTING SNOW ON EXPOSED MOUNTAIN SLOPES AND ALONG THE HIGHER RIDGES OF THE EAST SLOPE OF THE WIND RIVER MOUNTAINS. * IMPACTS...TRAVEL ACROSS THE LANDER FOOTHILLS AND THE ADJACENT EAST SLOPE OF THE WIND RIVER MOUNTAINS MAY BECOME HAZARDOUS BY LATE TONIGHT. THOSE PLANNING OUTDOOR ACTIVITIES SHOULD BE PREPARED FOR DETERIORATING WEATHER CONDITIONS. PRECAUTIONARY/PREPAREDNESS ACTIONS... REMEMBER...A WINTER STORM WATCH MEANS CONDITIONS ARE FAVORABLE FOR HAZARDOUS WINTER WEATHER IN AND CLOSE TO THE WATCH AREA. && $$ WYZ017-291945- /O.NEW.KRIW.WS.A.0018.101230T0700Z-101231T1200Z/ WIND RIVER BASIN- INCLUDING THE CITIES OF...RIVERTON...SHOSHONI 439 AM MST WED DEC 29 2010 ...WINTER STORM WATCH IN EFFECT FROM LATE TONIGHT THROUGH LATE THURSDAY NIGHT... THE NATIONAL WEATHER SERVICE IN RIVERTON HAS ISSUED A WINTER STORM WATCH...WHICH IS IN EFFECT FROM LATE TONIGHT THROUGH LATE THURSDAY NIGHT. * SUMMARY AND TIMING...LIGHT SNOW WILL DEVELOP THIS EVENING. SNOWFALL MAY BECOME HEAVY AT TIMES AFTER MIDNIGHT TONIGHT AND COULD CONTINUE THROUGH THURSDAY THROUGH THURSDAY NIGHT. THE HEAVIEST SNOW SHOULD OCCUR THURSDAY. * SNOW ACCUMULATIONS...ACCUMULATIONS OF 3 TO 6 INCHES MAY OCCUR ALONG WITH ISOLATED AMOUNTS OF 8 INCHES BY LATE THURSDAY NIGHT. * WIND AND VISIBILITY...NORTH TO NORTHEAST WINDS OF 20 TO 30 MPH WITH SOME GUSTS OF 35 MPH MAY CAUSE SIGNIFICANT BLOWING AND DRIFTING SNOW. * IMPACTS...TRAVEL ACROSS THE WIND RIVER BASIN MAY BECOME HAZARDOUS BY LATE TONIGHT. THOSE PLANNING OUTDOOR ACTIVITIES SHOULD BE PREPARED FOR DETERIORATING WEATHER CONDITIONS. PRECAUTIONARY/PREPAREDNESS ACTIONS... REMEMBER...A WINTER STORM WATCH MEANS CONDITIONS ARE FAVORABLE FOR HAZARDOUS WINTER WEATHER IN AND CLOSE TO THE WATCH AREA. && $$ WYZ020-022-291945- /O.NEW.KRIW.WS.A.0018.101230T0700Z-101231T1200Z/ NATRONA COUNTY LOWER ELEVATIONS-CASPER MOUNTAIN- INCLUDING THE CITY OF...CASPER 439 AM MST WED DEC 29 2010 ...WINTER STORM WATCH IN EFFECT FROM LATE TONIGHT THROUGH LATE THURSDAY NIGHT... THE NATIONAL WEATHER SERVICE IN RIVERTON HAS ISSUED A WINTER STORM WATCH...WHICH IS IN EFFECT FROM LATE TONIGHT THROUGH LATE THURSDAY NIGHT. * SUMMARY AND TIMING...LIGHT SNOW WILL DEVELOP THIS EVENING. SNOWFALL MAY BECOME HEAVY AT TIMES AFTER MIDNIGHT TONIGHT AND COULD CONTINUE THROUGH THURSDAY THROUGH THURSDAY NIGHT. * SNOW ACCUMULATIONS...6 TO 10 INCHES OF SNOWFALL MAY ACCUMULATE BY LATE THURSDAY NIGHT ACROSS SOUTHERN NATRONA COUNTY INCLUDING THE CASPER AREA. CASPER MOUNTAIN MAY RECEIVE AS MUCH AS 14 TO 20 INCHES. 4 TO 8 INCHES OF SNOWFALL MAY OCCUR ACROSS NORTHERN NATRONA COUNTY. * WIND AND VISIBILITY...NORTH TO NORTHEAST WINDS OF 20 TO 30 MPH WITH SOME GUSTS OF 35 MPH MAY CAUSE SIGNIFICANT BLOWING AND DRIFTING SNOW. * IMPACTS...TRAVEL ACROSS NATRONA COUNTY AS WELL AS ON CASPER MOUNTAIN MAY BECOME HAZARDOUS BY LATE TONIGHT...ESPECIALLY FOR THOSE THAT NAVIGATE CASPER MOUNTAIN ROAD. THOSE PLANNING OUTDOOR ACTIVITIES SHOULD BE PREPARED FOR DETERIORATING WEATHER CONDITIONS. PRECAUTIONARY/PREPAREDNESS ACTIONS... REMEMBER...A WINTER STORM WATCH MEANS CONDITIONS ARE FAVORABLE FOR HAZARDOUS WINTER WEATHER IN AND CLOSE TO THE WATCH AREA. && $$ WYZ005-007-291945- /O.NEW.KRIW.WS.A.0018.101230T0700Z-101231T1200Z/ SOUTHWEST BIG HORN BASIN-OWL CREEK AND BRIDGER MOUNTAINS- INCLUDING THE CITY OF...THERMOPOLIS 439 AM MST WED DEC 29 2010 ...WINTER STORM WATCH IN EFFECT FROM LATE TONIGHT THROUGH LATE THURSDAY NIGHT... THE NATIONAL WEATHER SERVICE IN RIVERTON HAS ISSUED A WINTER STORM WATCH...WHICH IS IN EFFECT FROM LATE TONIGHT THROUGH LATE THURSDAY NIGHT. * SUMMARY AND TIMING...LIGHT SNOW WILL DEVELOP THIS EVENING. SNOWFALL MAY BECOME HEAVY AT TIMES AFTER MIDNIGHT TONIGHT AND COULD CONTINUE THROUGH THURSDAY THROUGH THURSDAY NIGHT. * SNOW ACCUMULATIONS...3 TO 5 INCHES OF SNOW MAY ACCUMULATE BY LATE THURSDAY NIGHT WITH ISOLATED AMOUNTS OF 7 INCHES. THE ADJACENT OWL CREEK MOUNTAINS TO THE SOUTH MAY RECEIVE 6 TO 12 INCHES OF SNOW. * WIND AND VISIBILITY...NORTH TO NORTHEAST WINDS OF 20 TO 30 MPH WITH SOME GUSTS OF 35 MPH MAY CAUSE SIGNIFICANT BLOWING AND DRIFTING SNOW. WINDS OF 30 TO 40 MPH WITH GUSTS TO 45 MPH MAY OCCUR ON THE EXPOSED RIDGES OF THE OWL CREEK MOUNTAINS AS WELL AS AT THE MOUTH OF THE WIND RIVER CANYON WHICH MAY RESULT IN CONSIDERABLE BLOWING AND DRIFTING SNOW AS WELL AS POSSIBLE WHITE OUT CONDITIONS. * IMPACTS...TRAVEL ACROSS HOT SPRINGS COUNTY...ESPECIALLY THROUGH THE WIND RIVER CANYON...MAY BECOME HAZARDOUS BY LATE TONIGHT. POSSIBLE WHITE OUT CONDITIONS ALONG WITH CONSIDERABLE BLOWING AND DRIFTING SNOW MAY BE A CONCERN ALONG THE STRETCH OF HIGHWAY 789 THROUGH THE MOUTH OF THE WIND RIVER CANYON IN EXTREME NORTHEAST FREMONT COUNTY. THOSE PLANNING OUTDOOR ACTIVITIES SHOULD BE PREPARED FOR DETERIORATING WEATHER CONDITIONS. PRECAUTIONARY/PREPAREDNESS ACTIONS... REMEMBER...A WINTER STORM WATCH MEANS CONDITIONS ARE FAVORABLE FOR HAZARDOUS WINTER WEATHER IN AND CLOSE TO THE WATCH AREA. && $$ LIPSON
169 WWUS45 KRIW 291934 WSWRIW URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE RIVERTON WY 1234 PM MST WED DEC 29 2010 ...SIGNIFICANT SNOWFALL RETURNS TO WESTERN WYOMING TODAY AND THEN WILL LIKELY SHIFT TO CENTRAL WYOMING EAST OF THE DIVIDE LATE TONIGHT AND CONTINUE THROUGH THURSDAY AND THURSDAY NIGHT... .A PACIFIC STORM SYSTEM WILL MOVE INTO THE CENTRAL GREAT BASIN TODAY AND IS EXPECTED TO BRING PERIODS OF HEAVY SNOWFALL TO WESTERN WYOMING THROUGH THIS EVENING. GUSTY SOUTH TO SOUTHWEST WINDS COULD ALSO CREATE AREAS OF BLOWING SNOW. THEN AN ASSOCIATED TROUGH OF LOW PRESSURE WILL TRACK EAST ACROSS THE ROCKY MOUNTAINS AND AN ASSOCIATED STRONG COLD FRONT WILL TRACK SOUTH ACROSS WYOMING TONIGHT RESULTING IN DEVELOPING SNOWFALL EAST OF THE DIVIDE TONIGHT. THE MAIN LOW PRESSURE CENTER WILL THEN BECOME MORE ORGANIZED EAST OF THE DIVIDE LATE TONIGHT. THIS WILL RESULT IN A POTENTIAL FOR PERIODS OF HEAVY SNOW ALONG ACROSS PORTIONS OF CENTRAL WYOMING EAST OF THE DIVIDE LATE TONIGHT THROUGH THURSDAY AND THURSDAY NIGHT. IN ADDITION...STRONG NORTH TO EAST WINDS MAY CAUSE BLOWING AND DRIFTING SNOW DURING ACROSS SOME AREAS EAST OF THE DIVIDE LATE TONIGHT THROUGH THURSDAY NIGHT. WYZ012-300000- /O.CON.KRIW.WS.W.0021.000000T0000Z-101230T0700Z/ TETON AND GROS VENTRE MOUNTAINS- 1234 PM MST WED DEC 29 2010 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL MIDNIGHT MST TONIGHT... A WINTER STORM WARNING REMAINS IN EFFECT UNTIL MIDNIGHT MST TONIGHT. * SUMMARY AND TIMING...SNOW WILL CONTINUE THIS AFTERNOON...BECOMING HEAVY AT TIMES. THE SNOW IS EXPECTED TO CONTINUE THROUGH LATE THIS EVENING. * SNOW ACCUMULATIONS...SNOWFALL OF 10 TO 15 INCHES IS POSSIBLE BY LATE THIS EVENING. SNOWFALL OF AROUND 12 INCHES HAS BEEN REPORTED AT PHILLIPS BENCH. * WIND AND VISIBILITY...SOUTH TO SOUTHWEST WINDS OF 20 TO 35 MPH WITH HIGHER GUSTS COULD CAUSE SIGNIFICANT BLOWING AND DRIFTING SNOW...CREATING NEAR WHITEOUT CONDITIONS...ESPECIALLY AT PASS AND SUMMIT ELEVATIONS. * IMPACTS...TRAVEL OVER TETON AND TOGWOTEE PASSES ARE EXPECTED TO BECOME SNOWPACKED AND TREACHEROUS TODAY. THOSE PLANNING OUTDOOR ACTIVITIES SHOULD BE PREPARED FOR DETERIORATING WEATHER CONDITIONS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED OR OCCURRING. SIGNIFICANT AMOUNTS OF SNOW ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN AN EMERGENCY. IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT... FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY. && $$ WYZ024-300000- /O.CON.KRIW.WS.W.0021.000000T0000Z-101230T0700Z/ SALT RIVER AND WYOMING RANGES- 1234 PM MST WED DEC 29 2010 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL MIDNIGHT MST TONIGHT... A WINTER STORM WARNING REMAINS IN EFFECT UNTIL MIDNIGHT MST TONIGHT. * SUMMARY AND TIMING...SNOW IS EXPECTED TO CONTINUE THIS AFTERNOON AND WILL BECOME HEAVY AT TIMES. SNOW WILL CONTINUE THROUGH LATE THIS EVENING. * SNOW ACCUMULATIONS...SNOWFALL OF 10 TO 18 INCHES IS POSSIBLE BY LATE THIS EVENING. SNOWFALL OF AROUND 6 INCHES HAS BEEN NOTED OVER THE MOUNTAIN RANGE. * WIND AND VISIBILITY...SOUTH TO SOUTHWEST WINDS OF 20 TO 35 MPH WITH HIGHER GUSTS COULD CAUSE SIGNIFICANT BLOWING AND DRIFTING SNOW...CREATING NEAR WHITEOUT CONDITIONS...ESPECIALLY AT PASS AND SUMMIT ELEVATIONS. * IMPACTS...TRAVEL OVER SALT RIVER PASS IS EXPECTED TO BECOME SNOWPACKED AND TREACHEROUS TODAY. THOSE PLANNING OUTDOOR ACTIVITIES SHOULD BE PREPARED FOR DETERIORATING WEATHER CONDITIONS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED OR OCCURRING. SIGNIFICANT AMOUNTS OF SNOW ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN AN EMERGENCY. IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT... FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY. && $$ WYZ023-300000- /O.CON.KRIW.WS.W.0021.000000T0000Z-101230T0700Z/ STAR VALLEY- INCLUDING THE CITIES OF...AFTON...ALPINE...THAYNE 1234 PM MST WED DEC 29 2010 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL MIDNIGHT MST TONIGHT... A WINTER STORM WARNING REMAINS IN EFFECT UNTIL MIDNIGHT MST TONIGHT. * SUMMARY AND TIMING...SNOW WILL CONTINUE TODAY AND WILL BECOME HEAVY AT TIMES. SNOW IS EXPECTED TO CONTINUE THROUGH LATE THIS EVENING. * SNOW ACCUMULATIONS...SNOWFALL OF 5 TO 7 INCHES IS POSSIBLE BY LATE THIS EVENING OVER THE SOUTHERN HALF OF THE VALLEY. HEAVIER SNOWFALL AMOUNTS OF 6 TO 9 INCHES ARE EXPECTED OVER THE NORTHERN HALF OF THE VALLEY. REPORTS OF 3 TO 4 INCHES HAS BEEN REPORTED ACROSS THE NORTHERN HALF OF THE VALLEY...WITH AROUND 1 TO 3 INCHES ACROSS THE SOUTHERN HALF. * WIND AND VISIBILITY...SOUTH TO SOUTHWEST WINDS OF 10 TO 20 MPH WITH HIGHER GUSTS COULD CAUSE SOME BLOWING AND DRIFTING SNOW... CREATING POOR VISIBILITIES AT TIMES IN OPEN AREAS. * IMPACTS...TRAVEL THROUGH THE STAR VALLEY IS EXPECTED TO BECOME TREACHEROUS TODAY. THOSE PLANNING OUTDOOR ACTIVITIES SHOULD BE PREPARED FOR DETERIORATING WEATHER CONDITIONS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED OR OCCURRING. SIGNIFICANT AMOUNTS OF SNOW ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN AN EMERGENCY. IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT... FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY. && $$ WYZ001-300000- /O.CON.KRIW.WW.Y.0045.000000T0000Z-101230T0700Z/ YELLOWSTONE NATIONAL PARK- INCLUDING THE CITIES OF...LAKE...MAMMOTH...OLD FAITHFUL 1234 PM MST WED DEC 29 2010 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT MST TONIGHT... A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT MST TONIGHT. * SUMMARY AND TIMING...SNOWFALL WILL CONTINUE TODAY THROUGH LATE THIS EVENING ACROSS YELLOWSTONE PARK. PERIODS OF MODERATE TO HEAVY SNOWFALL WILL STILL BE POSSIBLE THIS AFTERNOON. * SNOW ACCUMULATIONS...THE SOUTHWESTERN PORTION OF YELLOWSTONE MAY SEE SNOWFALL AMOUNTS OF 10 TO 15 INCHES...HOWEVER THE MAJORITY OF THE PARK WILL SEE SNOWFALL OF 6 TO 10 INCHES THROUGH LATE THIS EVENING. WIDESPREAD SNOWFALL AMOUNTS OF 6 TO 10 INCHES HAVE BEEN NOTED ACROSS THE PARK TODAY...WITH 12 INCHES OF SNOWFALL REPORTED AT OLD FAITHFUL. * WIND AND VISIBILITY...WIND OF 15 TO 25 MPH ARE ANTICIPATED OVER PORTIONS OF YELLOWSTONE. THIS WIND COULD CREATE BLOWING AND DRIFTING SNOW ALONG WITH LIMITED VISIBILITIES. * IMPACTS...CONDITIONS ACROSS YELLOWSTONE NATIONAL PARK ARE EXPECTED TO BECOME HAZARDOUS TODAY. THOSE PLANNING OUTDOOR ACTIVITIES SHOULD BE PREPARED FOR DETERIORATING WEATHER CONDITIONS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW AND BLOWING SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$ WYZ027-300000- /O.CON.KRIW.WW.Y.0045.000000T0000Z-101230T0700Z/ SOUTH LINCOLN COUNTY- INCLUDING THE CITIES OF...KEMMERER...COKEVILLE 1234 PM MST WED DEC 29 2010 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT MST TONIGHT... A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT MST TONIGHT. * SUMMARY AND TIMING...SNOWFALL WILL CONTINUE THROUGH THE EVENING HOURS. PERIODS OF LIGHT TO MODERATE SNOWFALL WILL CONTINUE TODAY. * SNOW ACCUMULATIONS...SNOWFALL IS EXPECTED TO VARY ACROSS THE AREA WITH THIS EVENT. THE WESTERN PORTION OF SOUTHERN LINCOLN COUNTY...INCLUDING THE AREAS AROUND COKEVILLE ARE EXPECTED TO SEE SNOWFALL OF 3 TO 5 INCHES. SNOWFALL ACCUMULATIONS WILL LESSEN ACROSS THE EASTERN PORTION OF THE AREA...WITH ONLY 1 TO 2 INCHES EXPECTED. SNOWFALL OF UP TO 3 INCHES HAS BEEN REPORTED AT COKEVILLE TODAY. * WIND AND VISIBILITY...WIND OF 10 TO 20 MPH WITH GUSTS TO AROUND 30 MPH WILL BE POSSIBLE ACROSS THE AREA. THIS WILL CREATE BLOWING AND DRIFTING SNOW...WITH LIMITED VISIBILITIES ON ROADWAYS. * IMPACTS...TRAVEL THROUGH SOUTHERN LINCOLN COUNTY IS EXPECTED TO BECOME HAZARDOUS TODAY. THOSE PLANNING OUTDOOR ACTIVITIES SHOULD BE PREPARED FOR DETERIORATING WEATHER CONDITIONS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW AND BLOWING SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$ WYZ013-300000- /O.CON.KRIW.WW.Y.0045.000000T0000Z-101230T0700Z/ JACKSON HOLE- INCLUDING THE CITY OF...JACKSON 1234 PM MST WED DEC 29 2010 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT MST TONIGHT... A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT MST TONIGHT. * SUMMARY AND TIMING...SNOWFALL WILL CONTINUE OVER JACKSON HOLE THROUGH TODAY AND THIS EVENING. PERIODS OF LIGHT TO MODERATE SNOWFALL WILL CONTINUE THROUGH THIS EVENING. * SNOW ACCUMULATIONS...SNOWFALL IS EXPECTED TO VARY ACROSS THE AREA WITH THIS EVENT. THE SOUTHERN HALF OF THE VALLEY INCLUDING THE CITY OF JACKSON ARE EXPECTED TO SEE SNOWFALL OF 4 TO 7 INCHES. SNOWFALL ACCUMULATIONS WILL INCREASE MOVING NORTH THROUGH THE VALLEY WITH 5 TO 8 INCHES EXPECTED NEAR MOOSE AND MORAN THROUGH LATE THIS EVENING. SNOWFALL OF 5 TO 8 INCHES HAS BEEN REPORTED ACROSS THE VALLEY TODAY...WITH UP TO 12 INCHES REPORTED AROUND THE COLTER BAY AREA. * WIND AND VISIBILITY...WIND OF 10 TO 15 MPH WITH GUSTS TO AROUND 20 MPH WILL BE POSSIBLE ACROSS THE VALLEY. THIS INCREASED WIND MAY CREATE BLOWING AND DRIFTING SNOW WHICH MAY LIMIT VISIBILITIES ON ROADWAYS. * IMPACTS...TRAVEL THROUGH SOUTHERN JACKSON VALLEY IS EXPECTED TO BECOME HAZARDOUS TODAY. THOSE PLANNING OUTDOOR ACTIVITIES SHOULD BE PREPARED FOR DETERIORATING WEATHER CONDITIONS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW AND BLOWING SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$ WYZ014-300000- /O.CON.KRIW.WW.Y.0045.000000T0000Z-101230T0700Z/ WIND RIVER MOUNTAINS WEST- 1234 PM MST WED DEC 29 2010 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT MST TONIGHT... A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT MST TONIGHT. * SUMMARY AND TIMING...SNOWFALL CONTINUES THIS AFTERNOON AND WILL BECOME HEAVY AT TIMES. SNOW IS EXPECTED TO CONTINUE THROUGH LATE THIS EVENING. * SNOW ACCUMULATIONS...6 TO 12 INCHES OF SNOW IS EXPECTED BY LATE THIS EVENING. 3 TO 6 INCHES OF SNOW IS EXPECTED OVER SOUTH PASS. SNOWFALL OF UP TO 6 INCHES HAS BEEN REPORTED IN THE WESTERN SLOPES OF THE WIND RIVER MOUNTAINS. * WIND AND VISIBILITY...WEST SOUTHWEST WINDS OF 40 TO 50 MPH WITH GUSTS TO 60 TO 65 MPH CAN BE EXPECTED TODAY AT TIMES OVER SOUTH PASS CAUSING OCCASIONAL NEAR ZERO VISIBILITY IN BLOWING SNOW CREATING OCCASIONAL WHITE OUT CONDITIONS. LESSER WIND SPEEDS WILL OCCUR ACROSS THE REST OF THE MOUNTAIN RANGE. * IMPACTS...TRAVEL ACROSS SOUTH PASS ON HIGHWAY 28 WILL BECOME TREACHEROUS TODAY WITH BLOWING AND DRIFTING SNOW EXPECTED...IN ADDITION TO THE FALLING SNOW...CAUSING OCCASIONAL WHITE OUT CONDITIONS. THOSE PLANNING OUTDOOR ACTIVITIES SHOULD BE PREPARED FOR DETERIORATING WEATHER CONDITIONS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW AND BLOWING SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$ WYZ025-300000- /O.CON.KRIW.WW.Y.0045.000000T0000Z-101230T0700Z/ UPPER GREEN RIVER BASIN FOOTHILLS- INCLUDING THE CITY OF...PINEDALE 1234 PM MST WED DEC 29 2010 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT MST TONIGHT... A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT MST TONIGHT. * SUMMARY AND TIMING...SNOWFALL WILL INCREASE IN INTENSITY TODAY AND CONTINUE...HEAVY AT TIMES...THROUGH LATE THIS EVENING. * SNOW ACCUMULATIONS...SNOWFALL IS EXPECTED TO VARY ACROSS THE AREA WITH THIS EVENT. 3 INCHES OF SNOW IS EXPECTED IN PINEDALE WITH AROUND 5 INCHES EXPECTED IN BONDURANT BY LATE THIS EVENING. SNOWFALL OF 3 TO 4 INCHES HAS BEEN REPORTED ACROSS THE PINEDALE FOOTHILLS TODAY. * WIND AND VISIBILITY...WIND OF 10 TO 15 MPH WITH GUSTS TO AROUND 25 MPH WILL BE POSSIBLE ACROSS THE AREA. THIS INCREASED WIND MAY CREATE BLOWING AND DRIFTING SNOW WHICH MAY LIMIT VISIBILITIES ON ROADWAYS. * IMPACTS...TRAVEL THROUGH THE UPPER GREEN RIVER BASIN IS EXPECTED TO BECOME HAZARDOUS TODAY. THOSE PLANNING OUTDOOR ACTIVITIES SHOULD BE PREPARED FOR DETERIORATING WEATHER CONDITIONS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW AND BLOWING SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$ WYZ028>030-300000- /O.CON.KRIW.WS.A.0018.101230T0700Z-101231T1200Z/ ROCK SPRINGS AND GREEN RIVER-FLAMING GORGE-EAST SWEETWATER COUNTY- INCLUDING THE CITIES OF...ROCK SPRINGS...GREEN RIVER...WAMSUTTER 1234 PM MST WED DEC 29 2010 ...WINTER STORM WATCH REMAINS IN EFFECT FROM MIDNIGHT MST TONIGHT THROUGH LATE THURSDAY NIGHT... A WINTER STORM WATCH REMAINS IN EFFECT FROM MIDNIGHT MST TONIGHT THROUGH LATE THURSDAY NIGHT. * SUMMARY AND TIMING...PERIODS OF LIGHT SNOW WILL OCCUR TODAY THROUGH THIS EVENING. THEN SNOW MAY BECOME HEAVY AT TIMES AFTER MIDNIGHT TONIGHT AND CONTINUE THROUGH THURSDAY AND THURSDAY NIGHT. * SNOW ACCUMULATIONS...3 TO 6 INCHES MAY ACCUMULATE BY LATE THURSDAY NIGHT. * WIND AND VISIBILITY...STRONG WEST WINDS OF 20 TO 30 MPH WITH GUST OF 40 MPH MAY RESULT IN CONSIDERABLE BLOWING AND DRIFTING SNOW LATE TONIGHT ALONG WITH POSSIBLE WHITE OUT CONDITIONS. THESE WINDS WILL SHIFT TO THE EAST NORTHEAST BY 9 AM THURSDAY AT SIMILAR SPEEDS OF 20 TO 30 MPH WITH GUSTS TO 35 MPH CONTINUING THE POTENTIAL FOR CONSIDERABLE BLOWING AND DRIFTING SNOW THROUGH THURSDAY NIGHT ALONG WITH POSSIBLE WHITE OUT CONDITIONS. * IMPACTS...TRAVEL ACROSS SWEETWATER COUNTY...INCLUDING INTERSTATE 80...MAY BECOME HAZARDOUS LATE TONIGHT. THOSE PLANNING OUTDOOR ACTIVITIES SHOULD BE PREPARED FOR DETERIORATING WEATHER CONDITIONS. PRECAUTIONARY/PREPAREDNESS ACTIONS... REMEMBER...A WINTER STORM WATCH MEANS CONDITIONS ARE FAVORABLE FOR HAZARDOUS WINTER WEATHER IN AND CLOSE TO THE WATCH AREA. && $$ WYZ019-300000- /O.CON.KRIW.WS.A.0018.101230T0700Z-101231T1200Z/ GREEN MOUNTAINS AND RATTLESNAKE RANGE- INCLUDING THE CITY OF...JEFFREY CITY 1234 PM MST WED DEC 29 2010 ...WINTER STORM WATCH REMAINS IN EFFECT FROM MIDNIGHT MST TONIGHT THROUGH LATE THURSDAY NIGHT... A WINTER STORM WATCH REMAINS IN EFFECT FROM MIDNIGHT MST TONIGHT THROUGH LATE THURSDAY NIGHT. * SUMMARY AND TIMING...LIGHT SNOW WILL DEVELOP THIS EVENING. SNOWFALL MAY BECOME HEAVY AT TIMES AFTER MIDNIGHT TONIGHT AND COULD CONTINUE THROUGH THURSDAY THROUGH THURSDAY NIGHT. * SNOW ACCUMULATIONS...5 TO 10 INCHES MAY ACCUMULATE BY LATE THURSDAY NIGHT. * WIND AND VISIBILITY...NORTH TO NORTHEAST WINDS OF 20 TO 30 MPH WITH GUSTS TO 40 MPH MAY CAUSE SIGNIFICANT BLOWING AND DRIFTING SNOW...ALONG WITH POSSIBLE WHITE OUT CONDITIONS. * IMPACTS...TRAVEL ACROSS THE GREEN MOUNTAINS...INCLUDING HIGHWAY 287 THROUGH SWEETWATER STATION AND JEFFREY CITY...MAY BECOME HAZARDOUS LATE TONIGHT. THOSE PLANNING OUTDOOR ACTIVITIES SHOULD BE PREPARED FOR DETERIORATING WEATHER CONDITIONS. PRECAUTIONARY/PREPAREDNESS ACTIONS... REMEMBER...A WINTER STORM WATCH MEANS CONDITIONS ARE FAVORABLE FOR HAZARDOUS WINTER WEATHER IN AND CLOSE TO THE WATCH AREA. && $$ WYZ015-018-300000- /O.CON.KRIW.WS.A.0018.101230T0700Z-101231T1200Z/ WIND RIVER MOUNTAINS EAST-LANDER FOOTHILLS- INCLUDING THE CITY OF...LANDER 1234 PM MST WED DEC 29 2010 ...WINTER STORM WATCH REMAINS IN EFFECT FROM MIDNIGHT MST TONIGHT THROUGH LATE THURSDAY NIGHT... A WINTER STORM WATCH REMAINS IN EFFECT FROM MIDNIGHT MST TONIGHT THROUGH LATE THURSDAY NIGHT. * SUMMARY AND TIMING...LIGHT SNOW WILL DEVELOP THIS EVENING. SNOWFALL MAY BECOME HEAVY AT TIMES AFTER MIDNIGHT TONIGHT AND COULD CONTINUE THROUGH THURSDAY THROUGH THURSDAY NIGHT. * SNOW ACCUMULATIONS...10 TO 14 INCHES OF SNOWFALL MAY ACCUMULATE BY LATE THURSDAY NIGHT IN THE LANDER AREA ALONG WITH 12 TO 18 INCHES ACROSS THE ADJACENT EAST SLOPE OF THE WIND RIVER MOUNTAINS. * WIND AND VISIBILITY...NORTH TO NORTHEAST WINDS OF 20 TO 30 MPH WITH GUSTS TO 35 MPH MAY CAUSE SIGNIFICANT BLOWING AND DRIFTING SNOW ON EXPOSED MOUNTAIN SLOPES AND ALONG THE HIGHER RIDGES OF THE EAST SLOPE OF THE WIND RIVER MOUNTAINS. * IMPACTS...TRAVEL ACROSS THE LANDER FOOTHILLS AND THE ADJACENT EAST SLOPE OF THE WIND RIVER MOUNTAINS MAY BECOME HAZARDOUS BY LATE TONIGHT. THOSE PLANNING OUTDOOR ACTIVITIES SHOULD BE PREPARED FOR DETERIORATING WEATHER CONDITIONS. PRECAUTIONARY/PREPAREDNESS ACTIONS... REMEMBER...A WINTER STORM WATCH MEANS CONDITIONS ARE FAVORABLE FOR HAZARDOUS WINTER WEATHER IN AND CLOSE TO THE WATCH AREA. && $$ WYZ017-300000- /O.CON.KRIW.WS.A.0018.101230T0700Z-101231T1200Z/ WIND RIVER BASIN- INCLUDING THE CITIES OF...RIVERTON...SHOSHONI 1234 PM MST WED DEC 29 2010 ...WINTER STORM WATCH REMAINS IN EFFECT FROM MIDNIGHT MST TONIGHT THROUGH LATE THURSDAY NIGHT... A WINTER STORM WATCH REMAINS IN EFFECT FROM MIDNIGHT MST TONIGHT THROUGH LATE THURSDAY NIGHT. * SUMMARY AND TIMING...LIGHT SNOW WILL DEVELOP THIS EVENING. SNOWFALL MAY BECOME HEAVY AT TIMES AFTER MIDNIGHT TONIGHT AND COULD CONTINUE THROUGH THURSDAY THROUGH THURSDAY NIGHT. THE HEAVIEST SNOW SHOULD OCCUR THURSDAY. * SNOW ACCUMULATIONS...ACCUMULATIONS OF 3 TO 6 INCHES MAY OCCUR ALONG WITH ISOLATED AMOUNTS OF 8 INCHES BY LATE THURSDAY NIGHT. * WIND AND VISIBILITY...NORTH TO NORTHEAST WINDS OF 20 TO 30 MPH WITH SOME GUSTS OF 35 MPH MAY CAUSE SIGNIFICANT BLOWING AND DRIFTING SNOW. * IMPACTS...TRAVEL ACROSS THE WIND RIVER BASIN MAY BECOME HAZARDOUS BY LATE TONIGHT. THOSE PLANNING OUTDOOR ACTIVITIES SHOULD BE PREPARED FOR DETERIORATING WEATHER CONDITIONS. PRECAUTIONARY/PREPAREDNESS ACTIONS... REMEMBER...A WINTER STORM WATCH MEANS CONDITIONS ARE FAVORABLE FOR HAZARDOUS WINTER WEATHER IN AND CLOSE TO THE WATCH AREA. && $$ WYZ020-022-300000- /O.CON.KRIW.WS.A.0018.101230T0700Z-101231T1200Z/ NATRONA COUNTY LOWER ELEVATIONS-CASPER MOUNTAIN- INCLUDING THE CITY OF...CASPER 1234 PM MST WED DEC 29 2010 ...WINTER STORM WATCH REMAINS IN EFFECT FROM MIDNIGHT MST TONIGHT THROUGH LATE THURSDAY NIGHT... A WINTER STORM WATCH REMAINS IN EFFECT FROM MIDNIGHT MST TONIGHT THROUGH LATE THURSDAY NIGHT. * SUMMARY AND TIMING...LIGHT SNOW WILL DEVELOP THIS EVENING. SNOWFALL MAY BECOME HEAVY AT TIMES AFTER MIDNIGHT TONIGHT AND COULD CONTINUE THROUGH THURSDAY THROUGH THURSDAY NIGHT. * SNOW ACCUMULATIONS...6 TO 10 INCHES OF SNOWFALL MAY ACCUMULATE BY LATE THURSDAY NIGHT ACROSS SOUTHERN NATRONA COUNTY INCLUDING THE CASPER AREA. CASPER MOUNTAIN MAY RECEIVE AS MUCH AS 14 TO 20 INCHES. 4 TO 8 INCHES OF SNOWFALL MAY OCCUR ACROSS NORTHERN NATRONA COUNTY. * WIND AND VISIBILITY...NORTH TO NORTHEAST WINDS OF 20 TO 30 MPH WITH SOME GUSTS OF 35 MPH MAY CAUSE SIGNIFICANT BLOWING AND DRIFTING SNOW. * IMPACTS...TRAVEL ACROSS NATRONA COUNTY AS WELL AS ON CASPER MOUNTAIN MAY BECOME HAZARDOUS BY LATE TONIGHT...ESPECIALLY FOR THOSE THAT NAVIGATE CASPER MOUNTAIN ROAD. THOSE PLANNING OUTDOOR ACTIVITIES SHOULD BE PREPARED FOR DETERIORATING WEATHER CONDITIONS. PRECAUTIONARY/PREPAREDNESS ACTIONS... REMEMBER...A WINTER STORM WATCH MEANS CONDITIONS ARE FAVORABLE FOR HAZARDOUS WINTER WEATHER IN AND CLOSE TO THE WATCH AREA. && $$ WYZ005-007-300000- /O.CON.KRIW.WS.A.0018.101230T0700Z-101231T1200Z/ SOUTHWEST BIG HORN BASIN-OWL CREEK AND BRIDGER MOUNTAINS- INCLUDING THE CITY OF...THERMOPOLIS 1234 PM MST WED DEC 29 2010 ...WINTER STORM WATCH REMAINS IN EFFECT FROM MIDNIGHT MST TONIGHT THROUGH LATE THURSDAY NIGHT... A WINTER STORM WATCH REMAINS IN EFFECT FROM MIDNIGHT MST TONIGHT THROUGH LATE THURSDAY NIGHT. * SUMMARY AND TIMING...LIGHT SNOW WILL DEVELOP THIS EVENING. SNOWFALL MAY BECOME HEAVY AT TIMES AFTER MIDNIGHT TONIGHT AND COULD CONTINUE THROUGH THURSDAY THROUGH THURSDAY NIGHT. * SNOW ACCUMULATIONS...3 TO 5 INCHES OF SNOW MAY ACCUMULATE BY LATE THURSDAY NIGHT WITH ISOLATED AMOUNTS OF 7 INCHES. THE ADJACENT OWL CREEK MOUNTAINS TO THE SOUTH MAY RECEIVE 6 TO 12 INCHES OF SNOW. * WIND AND VISIBILITY...NORTH TO NORTHEAST WINDS OF 20 TO 30 MPH WITH SOME GUSTS OF 35 MPH MAY CAUSE SIGNIFICANT BLOWING AND DRIFTING SNOW. WINDS OF 30 TO 40 MPH WITH GUSTS TO 45 MPH MAY OCCUR ON THE EXPOSED RIDGES OF THE OWL CREEK MOUNTAINS AS WELL AS AT THE MOUTH OF THE WIND RIVER CANYON WHICH MAY RESULT IN CONSIDERABLE BLOWING AND DRIFTING SNOW AS WELL AS POSSIBLE WHITE OUT CONDITIONS. * IMPACTS...TRAVEL ACROSS HOT SPRINGS COUNTY...ESPECIALLY THROUGH THE WIND RIVER CANYON...MAY BECOME HAZARDOUS BY LATE TONIGHT. POSSIBLE WHITE OUT CONDITIONS ALONG WITH CONSIDERABLE BLOWING AND DRIFTING SNOW MAY BE A CONCERN ALONG THE STRETCH OF HIGHWAY 789 THROUGH THE MOUTH OF THE WIND RIVER CANYON IN EXTREME NORTHEAST FREMONT COUNTY. THOSE PLANNING OUTDOOR ACTIVITIES SHOULD BE PREPARED FOR DETERIORATING WEATHER CONDITIONS. PRECAUTIONARY/PREPAREDNESS ACTIONS... REMEMBER...A WINTER STORM WATCH MEANS CONDITIONS ARE FAVORABLE FOR HAZARDOUS WINTER WEATHER IN AND CLOSE TO THE WATCH AREA. && $$
333 WWUS45 KRIW 292125 WSWRIW URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE RIVERTON WY 225 PM MST WED DEC 29 2010 ...SIGNIFICANT SNOWFALL CONTINUES IN WESTERN WYOMING THROUGH MIDNIGHT AND WILL THEN SHIFT TO CENTRAL WYOMING EAST OF THE DIVIDE LATE TONIGHT AND CONTINUE THROUGH THURSDAY AND THURSDAY NIGHT... .A PACIFIC STORM SYSTEM WILL MOVE INTO THE CENTRAL GREAT BASIN THIS EVENING AND IS EXPECTED TO BRING PERIODS OF HEAVY SNOWFALL TO WESTERN WYOMING THROUGH THIS EVENING. GUSTY SOUTH TO SOUTHWEST WINDS WILL ALSO CREATE AREAS OF BLOWING SNOW. THEN AN ASSOCIATED TROUGH OF LOW PRESSURE WILL TRACK EAST ACROSS THE ROCKY MOUNTAINS AND AN ASSOCIATED STRONG COLD FRONT WILL TRACK SOUTH ACROSS WYOMING TONIGHT RESULTING IN DEVELOPING SNOWFALL EAST OF THE DIVIDE TONIGHT. THE MAIN LOW PRESSURE CENTER WILL THEN BECOME MORE ORGANIZED EAST OF THE DIVIDE LATE TONIGHT. THIS WILL RESULT IN PERIODS OF MODERATE TO HEAVY SNOW ALONG ACROSS PORTIONS OF CENTRAL WYOMING EAST OF THE DIVIDE LATE TONIGHT THROUGH THURSDAY NIGHT. IN ADDITION...STRONG NORTH TO EAST WINDS WILL CAUSE BLOWING AND DRIFTING SNOW DURING ACROSS SOME AREAS EAST OF THE DIVIDE LATE TONIGHT THROUGH THURSDAY NIGHT. COLD AIR WILL MOVE INTO THE AREA ON THURSDAY MORNING CAUSING WIND CHILLS TO DROP TO 20 BELOW ZERO AND LOWER IN MANY AREAS. WYZ015-018-300715- /O.UPG.KRIW.WS.A.0018.101230T0700Z-101231T1200Z/ /O.EXB.KRIW.WS.W.0021.101230T0700Z-101231T1200Z/ WIND RIVER MOUNTAINS EAST-LANDER FOOTHILLS- INCLUDING THE CITY OF...LANDER 225 PM MST WED DEC 29 2010 ...WINTER STORM WARNING IN EFFECT FROM MIDNIGHT TONIGHT TO 5 AM MST FRIDAY... THE NATIONAL WEATHER SERVICE IN RIVERTON HAS ISSUED A WINTER STORM WARNING FOR HEAVY SNOW...WHICH IS IN EFFECT FROM MIDNIGHT TONIGHT TO 5 AM MST FRIDAY. THE WINTER STORM WATCH IS NO LONGER IN EFFECT. * SUMMARY AND TIMING...LIGHT SNOW WILL DEVELOP THIS EVENING. SNOWFALL WILL BECOME HEAVY AT TIMES AFTER MIDNIGHT TONIGHT AND WILL CONTINUE THROUGH THURSDAY NIGHT. * SNOW ACCUMULATIONS...7 TO 10 INCHES OF SNOWFALL WILL ACCUMULATE BY LATE THURSDAY NIGHT IN THE LANDER AREA ALONG WITH 8 TO 14 INCHES ACROSS THE ADJACENT EAST SLOPE OF THE WIND RIVER MOUNTAINS. * WIND AND VISIBILITY...NORTH TO NORTHEAST WINDS OF 10 TO 20 MPH WITH GUSTS TO 30 MPH WILL CAUSE SIGNIFICANT BLOWING AND DRIFTING SNOW ON EXPOSED MOUNTAIN SLOPES AND ALONG THE HIGHER RIDGES OF THE EAST SLOPE OF THE WIND RIVER MOUNTAINS. IN ADDITION WINDS WILL COMBINE WITH TEMPERATURES AROUND ZERO DEGREES TO PRODUCE WIND CHILLS AROUND 15 BELOW BY THURSDAY NIGHT. * IMPACTS...TRAVEL ACROSS THE LANDER FOOTHILLS AND THE ADJACENT EAST SLOPE OF THE WIND RIVER MOUNTAINS WILL BECOME HAZARDOUS BY LATE TONIGHT. THOSE PLANNING OUTDOOR ACTIVITIES SHOULD BE PREPARED FOR DETERIORATING WEATHER CONDITIONS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED OR OCCURRING. SIGNIFICANT AMOUNTS OF SNOW ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN AN EMERGENCY. IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT...FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY. && $$ WYZ020-300715- /O.UPG.KRIW.WS.A.0018.101230T0700Z-101231T1200Z/ /O.EXB.KRIW.WS.W.0021.101230T0700Z-101231T1200Z/ NATRONA COUNTY LOWER ELEVATIONS- INCLUDING THE CITY OF...CASPER 225 PM MST WED DEC 29 2010 ...WINTER STORM WARNING IN EFFECT FROM MIDNIGHT TONIGHT TO 5 AM MST FRIDAY... THE NATIONAL WEATHER SERVICE IN RIVERTON HAS ISSUED A WINTER STORM WARNING FOR HEAVY SNOW AND BLOWING SNOW...WHICH IS IN EFFECT FROM MIDNIGHT TONIGHT TO 5 AM MST FRIDAY. THE WINTER STORM WATCH IS NO LONGER IN EFFECT. * SUMMARY AND TIMING...LIGHT SNOW WILL DEVELOP THIS EVENING. SNOWFALL WILL BECOME HEAVY AT TIMES AFTER MIDNIGHT TONIGHT AND WILL CONTINUE THROUGH THURSDAY NIGHT. * SNOW ACCUMULATIONS...5 TO 10 INCHES OF SNOWFALL WILL ACCUMULATE BY LATE THURSDAY NIGHT ACROSS SOUTHERN NATRONA COUNTY INCLUDING THE CASPER AREA. CASPER MOUNTAIN WILL RECEIVE AS MUCH AS 8 TO 13 INCHES. 3 TO 6 INCHES OF SNOWFALL WILL OCCUR ACROSS NORTHERN NATRONA COUNTY. * WIND AND VISIBILITY...NORTH TO NORTHEAST WINDS OF 20 TO 30 MPH WITH SOME GUSTS OF 35 MPH WILL CAUSE SIGNIFICANT BLOWING AND DRIFTING SNOW. WINDS WILL ALSO COMBINE WITH LOW TEMPERATURES TO PRODUCE WIND CHILLS OF 10 BELOW TO 20 BELOW BY THURSDAY NIGHT. * IMPACTS...TRAVEL ACROSS NATRONA COUNTY AS WELL AS ON CASPER MOUNTAIN WILL BECOME HAZARDOUS BY LATE TONIGHT...ESPECIALLY FOR THOSE THAT NAVIGATE CASPER MOUNTAIN ROAD. THOSE PLANNING OUTDOOR ACTIVITIES SHOULD BE PREPARED FOR DETERIORATING WEATHER CONDITIONS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING IS ISSUED WHEN SEVERE WINTER WEATHER IS EXPECTED TO OCCUR. HEAVY SNOW IS FORECAST TO ACCUMULATE IN THE AFFECTED AREAS...CAUSING HAZARDOUS DRIVING CONDITIONS. GUSTY WIND WILL ALSO CAUSE REDUCED VISIBILITIES...AS WELL AS BLOWING AND DRIFTING SNOW. THOSE WITH TRAVEL PLANS IN THE WARNING AREA ARE ADVISED TO CONSIDER POSTPONING TRAVEL...OR SHOULD USE EXTREME CAUTION IF TRAVEL IS NECESSARY. && $$ WYZ022-300715- /O.UPG.KRIW.WS.A.0018.101230T0700Z-101231T1200Z/ /O.EXB.KRIW.WS.W.0021.101230T0700Z-101231T1200Z/ CASPER MOUNTAIN- 225 PM MST WED DEC 29 2010 ...WINTER STORM WARNING IN EFFECT FROM MIDNIGHT TONIGHT TO 5 AM MST FRIDAY... THE NATIONAL WEATHER SERVICE IN RIVERTON HAS ISSUED A WINTER STORM WARNING FOR HEAVY SNOW AND BLOWING SNOW AND LOW WIND CHILL ...WHICH IS IN EFFECT FROM MIDNIGHT TONIGHT TO 5 AM MST FRIDAY. THE WINTER STORM WATCH IS NO LONGER IN EFFECT. * SUMMARY AND TIMING...LIGHT SNOW WILL DEVELOP THIS EVENING. SNOWFALL WILL BECOME HEAVY AT TIMES AFTER MIDNIGHT TONIGHT AND WILL CONTINUE THROUGH THURSDAY NIGHT. * SNOW ACCUMULATIONS...CASPER MOUNTAIN WILL RECEIVE AS MUCH AS 8 TO 13 INCHES BY THURSDAY NIGHT. * WIND AND VISIBILITY...NORTH TO NORTHEAST WINDS OF 20 TO 30 MPH WITH SOME GUSTS OF 35 MPH WILL CAUSE SIGNIFICANT BLOWING AND DRIFTING SNOW. * WIND CHILL...WINDS WILL ALSO COMBINE WITH LOW TEMPERATURES TO PRODUCE WIND CHILLS TO 35 BELOW BY THURSDAY NIGHT. * IMPACTS...TRAVEL ACROSS NATRONA COUNTY AS WELL AS ON CASPER MOUNTAIN WILL BECOME HAZARDOUS BY LATE TONIGHT...ESPECIALLY FOR THOSE THAT NAVIGATE CASPER MOUNTAIN ROAD. THOSE PLANNING OUTDOOR ACTIVITIES SHOULD BE PREPARED FOR DETERIORATING WEATHER CONDITIONS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING IS ISSUED WHEN SEVERE WINTER WEATHER IS EXPECTED TO OCCUR. HEAVY SNOW IS FORECAST TO ACCUMULATE IN THE AFFECTED AREAS...CAUSING HAZARDOUS DRIVING CONDITIONS. GUSTY WIND WILL ALSO CAUSE REDUCED VISIBILITIES...AS WELL AS BLOWING AND DRIFTING SNOW. THOSE WITH TRAVEL PLANS IN THE WARNING AREA ARE ADVISED TO CONSIDER POSTPONING TRAVEL...OR SHOULD USE EXTREME CAUTION IF TRAVEL IS NECESSARY. && $$ WYZ012-300700- /O.CON.KRIW.WS.W.0021.000000T0000Z-101230T0700Z/ TETON AND GROS VENTRE MOUNTAINS- 225 PM MST WED DEC 29 2010 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL MIDNIGHT MST TONIGHT... A WINTER STORM WARNING REMAINS IN EFFECT UNTIL MIDNIGHT MST TONIGHT. * SUMMARY AND TIMING...SNOW WILL CONTINUE THIS AFTERNOON... BECOMING HEAVY AT TIMES. THE SNOW IS EXPECTED TO CONTINUE THROUGH LATE TONIGHT. * SNOW ACCUMULATIONS...SNOWFALL OF 10 TO 15 INCHES IS POSSIBLE BY LATE THIS EVENING. SNOWFALL OF AROUND 12 INCHES HAS BEEN REPORTED AT PHILLIPS BENCH. * WIND AND VISIBILITY...SOUTH TO SOUTHWEST WINDS OF 20 TO 35 MPH WITH HIGHER GUSTS WILL CAUSE SIGNIFICANT BLOWING AND DRIFTING SNOW...CREATING NEAR WHITEOUT CONDITIONS...ESPECIALLY AT PASS AND SUMMIT ELEVATIONS. * IMPACTS...TRAVEL OVER TETON AND TOGWOTEE PASSES ARE EXPECTED TO BECOME SNOWPACKED AND TREACHEROUS THIS EVENING. THOSE PLANNING OUTDOOR ACTIVITIES SHOULD BE PREPARED FOR DETERIORATING WEATHER CONDITIONS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED OR OCCURRING. SIGNIFICANT AMOUNTS OF SNOW ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN AN EMERGENCY. IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT... FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY. && $$ WYZ024-300700- /O.CON.KRIW.WS.W.0021.000000T0000Z-101230T0700Z/ SALT RIVER AND WYOMING RANGES- 225 PM MST WED DEC 29 2010 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL MIDNIGHT MST TONIGHT... A WINTER STORM WARNING REMAINS IN EFFECT UNTIL MIDNIGHT MST TONIGHT. * SUMMARY AND TIMING...SNOW IS EXPECTED TO CONTINUE THIS AFTERNOON AND WILL BECOME HEAVY AT TIMES. SNOW WILL CONTINUE THROUGH LATE TONIGHT. * SNOW ACCUMULATIONS...SNOWFALL OF 10 TO 18 INCHES IS POSSIBLE BY LATE THIS EVENING. SNOWFALL OF AROUND 6 INCHES HAS BEEN NOTED OVER THE MOUNTAIN RANGE. * WIND AND VISIBILITY...SOUTH TO SOUTHWEST WINDS OF 20 TO 35 MPH WITH HIGHER GUSTS WILL CAUSE SIGNIFICANT BLOWING AND DRIFTING SNOW...CREATING NEAR WHITEOUT CONDITIONS...ESPECIALLY AT PASS AND SUMMIT ELEVATIONS. * IMPACTS...TRAVEL OVER SALT RIVER PASS IS EXPECTED TO BECOME SNOWPACKED AND TREACHEROUS THIS EVENING. THOSE PLANNING OUTDOOR ACTIVITIES SHOULD BE PREPARED FOR DETERIORATING WEATHER CONDITIONS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED OR OCCURRING. SIGNIFICANT AMOUNTS OF SNOW ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN AN EMERGENCY. IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT... FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY. && $$ WYZ023-300700- /O.CON.KRIW.WS.W.0021.000000T0000Z-101230T0700Z/ STAR VALLEY- INCLUDING THE CITIES OF...AFTON...ALPINE...THAYNE 225 PM MST WED DEC 29 2010 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL MIDNIGHT MST TONIGHT... A WINTER STORM WARNING REMAINS IN EFFECT UNTIL MIDNIGHT MST TONIGHT. * SUMMARY AND TIMING...SNOW WILL CONTINUE THIS EVENING AND WILL BE HEAVY AT TIMES. SNOW IS EXPECTED TO CONTINUE THROUGH LATE TONIGHT. * SNOW ACCUMULATIONS...SNOWFALL OF 5 TO 7 INCHES IS POSSIBLE BY LATE THIS EVENING OVER THE SOUTHERN HALF OF THE VALLEY. HEAVIER SNOWFALL AMOUNTS OF 6 TO 9 INCHES ARE EXPECTED OVER THE NORTHERN HALF OF THE VALLEY. REPORTS OF 3 TO 4 INCHES HAS BEEN REPORTED ACROSS THE NORTHERN HALF OF THE VALLEY...WITH AROUND 1 TO 3 INCHES ACROSS THE SOUTHERN HALF. * WIND AND VISIBILITY...SOUTH TO SOUTHWEST WINDS OF 10 TO 20 MPH WITH HIGHER GUSTS WILL CAUSE SOME BLOWING AND DRIFTING SNOW... CREATING POOR VISIBILITIES AT TIMES IN OPEN AREAS. * IMPACTS...TRAVEL THROUGH THE STAR VALLEY IS EXPECTED TO BECOME TREACHEROUS THIS EVENING. THOSE PLANNING OUTDOOR ACTIVITIES SHOULD BE PREPARED FOR DETERIORATING WEATHER CONDITIONS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED OR OCCURRING. SIGNIFICANT AMOUNTS OF SNOW ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN AN EMERGENCY. IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT... FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY. && $$ WYZ005-007-300715- /O.UPG.KRIW.WS.A.0018.101230T0700Z-101231T1200Z/ /O.EXB.KRIW.WW.Y.0045.101230T0700Z-101231T1200Z/ SOUTHWEST BIG HORN BASIN-OWL CREEK AND BRIDGER MOUNTAINS- INCLUDING THE CITY OF...THERMOPOLIS 225 PM MST WED DEC 29 2010 ...WINTER WEATHER ADVISORY IN EFFECT FROM MIDNIGHT TONIGHT TO 5 AM MST FRIDAY... THE NATIONAL WEATHER SERVICE IN RIVERTON HAS ISSUED A WINTER WEATHER ADVISORY FOR FOR HEAVY SNOW...WHICH IS IN EFFECT FROM MIDNIGHT TONIGHT TO 5 AM MST FRIDAY. THE WINTER STORM WATCH IS NO LONGER IN EFFECT. * SUMMARY AND TIMING...LIGHT SNOW WILL DEVELOP THIS EVENING. SNOWFALL WILL BECOME HEAVY AT TIMES AFTER MIDNIGHT TONIGHT AND WILL CONTINUE THROUGH THURSDAY NIGHT. * SNOW ACCUMULATIONS...3 TO 5 INCHES OF SNOW WILL ACCUMULATE BY EARLY FRIDAY MORNING WITH ISOLATED AMOUNTS OF 7 INCHES. THE ADJACENT OWL CREEK MOUNTAINS TO THE SOUTH WILL RECEIVE 6 TO 12 INCHES OF SNOW. * WIND AND VISIBILITY...NORTH TO NORTHEAST WINDS OF 20 TO 30 MPH WITH SOME GUSTS OF 35 MPH WILL CAUSE SIGNIFICANT BLOWING AND DRIFTING SNOW. WINDS OF 30 TO 40 MPH WITH GUSTS TO 45 MPH WILL OCCUR ON THE EXPOSED RIDGES OF THE OWL CREEK MOUNTAINS AS WELL AS AT THE MOUTH OF THE WIND RIVER CANYON WHICH WILL RESULT IN CONSIDERABLE BLOWING AND DRIFTING SNOW AS WELL AS BRIEF WHITE OUT CONDITIONS. IN ADDITION...WINDS WILL COMBINE WITH LOW TEMPERATURES TO PRODUCE WIND CHILLS OF 10 BELOW TO 20 BELOW BY THURSDAY NIGHT. * IMPACTS...TRAVEL ACROSS HOT SPRINGS COUNTY...ESPECIALLY THROUGH THE WIND RIVER CANYON...WILL BECOME HAZARDOUS BY LATE TONIGHT. POSSIBLE WHITE OUT CONDITIONS ALONG WITH CONSIDERABLE BLOWING AND DRIFTING SNOW WILL BE A CONCERN ALONG THE STRETCH OF HIGHWAY 789 THROUGH THE MOUTH OF THE WIND RIVER CANYON IN EXTREME NORTHEAST FREMONT COUNTY. THOSE PLANNING OUTDOOR ACTIVITIES SHOULD BE PREPARED FOR DETERIORATING WEATHER CONDITIONS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW AND BLOWING SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$ WYZ017-300715- /O.UPG.KRIW.WS.A.0018.101230T0700Z-101231T1200Z/ /O.EXB.KRIW.WW.Y.0045.101230T0700Z-101231T1200Z/ WIND RIVER BASIN- INCLUDING THE CITIES OF...RIVERTON...SHOSHONI 225 PM MST WED DEC 29 2010 ...WINTER WEATHER ADVISORY IN EFFECT FROM MIDNIGHT TONIGHT TO 5 AM MST FRIDAY... THE NATIONAL WEATHER SERVICE IN RIVERTON HAS ISSUED A WINTER WEATHER ADVISORY FOR HEAVY SNOW...WHICH IS IN EFFECT FROM MIDNIGHT TONIGHT TO 5 AM MST FRIDAY. THE WINTER STORM WATCH IS NO LONGER IN EFFECT. * SUMMARY AND TIMING...LIGHT SNOW WILL DEVELOP THIS EVENING. SNOWFALL WILL BECOME HEAVY AT TIMES AFTER MIDNIGHT TONIGHT AND WILL CONTINUE THROUGH EARLY FRIDAY MORNING. THE HEAVIEST SNOW WILL OCCUR THURSDAY DURING THE MORNING COMMUTE. STEADY LIGHT SNOW WILL FALL THEREAFTER. * SNOW ACCUMULATIONS...ACCUMULATIONS OF 2 TO 5 INCHES WILL OCCUR ALONG WITH ISOLATED AMOUNTS OF 7 INCHES BY EARLY FRIDAY MORNING. * WIND AND VISIBILITY...NORTH TO NORTHEAST WINDS OF 15 TO 25 MPH WITH SOME GUSTS OF 35 MPH WILL CAUSE SIGNIFICANT BLOWING AND DRIFTING SNOW. IN ADDITION...WINDS WILL COMBINE WITH LOW TEMPERATURES TO PRODUCE WIND CHILLS OF 10 BELOW TO 20 BELOW BY THURSDAY NIGHT. * IMPACTS...TRAVEL ACROSS THE WIND RIVER BASIN WILL BECOME HAZARDOUS BY LATE TONIGHT. THOSE PLANNING OUTDOOR ACTIVITIES SHOULD BE PREPARED FOR DETERIORATING WEATHER CONDITIONS. && PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW AND BLOWING SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$ WYZ019-300715- /O.UPG.KRIW.WS.A.0018.101230T0700Z-101231T1200Z/ /O.EXB.KRIW.WW.Y.0045.101230T0700Z-101231T1200Z/ GREEN MOUNTAINS AND RATTLESNAKE RANGE- INCLUDING THE CITY OF...JEFFREY CITY 225 PM MST WED DEC 29 2010 ...WINTER WEATHER ADVISORY IN EFFECT FROM MIDNIGHT TONIGHT TO 5 AM MST FRIDAY... THE NATIONAL WEATHER SERVICE IN RIVERTON HAS ISSUED A WINTER WEATHER ADVISORY FOR HEAVY SNOW AND BLOWING SNOW...WHICH IS IN EFFECT FROM MIDNIGHT TONIGHT TO 5 AM MST FRIDAY. THE WINTER STORM WATCH IS NO LONGER IN EFFECT. * SUMMARY AND TIMING...LIGHT SNOW WILL DEVELOP THIS EVENING. SNOWFALL WILL BECOME HEAVY AT TIMES AFTER MIDNIGHT TONIGHT AND WILL CONTINUE THROUGH THURSDAY NIGHT. * SNOW ACCUMULATIONS...3 TO 6 INCHES WILL ACCUMULATE BY EARLY FRIDAY MORNING. * WIND AND VISIBILITY...NORTH TO NORTHEAST WINDS OF 15 TO 20 MPH WITH GUSTS TO 35 MPH WILL CAUSE SIGNIFICANT BLOWING AND DRIFTING SNOW...ALONG WITH POSSIBLE WHITE OUT CONDITIONS. IN ADDITION... WINDS WILL COMBINE WITH LOW TEMPERATURES TO PRODUCE WIND CHILLS OF 15 BELOW TO 25 BELOW BY THURSDAY NIGHT. * IMPACTS...TRAVEL ACROSS THE GREEN MOUNTAINS...INCLUDING HIGHWAY 287 THROUGH SWEETWATER STATION AND JEFFREY CITY...WILL BECOME HAZARDOUS LATE TONIGHT. THOSE PLANNING OUTDOOR ACTIVITIES SHOULD BE PREPARED FOR DETERIORATING WEATHER CONDITIONS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW AND BLOWING SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$ WYZ028>030-300715- /O.UPG.KRIW.WS.A.0018.101230T0700Z-101231T1200Z/ /O.EXB.KRIW.WW.Y.0045.101230T0700Z-101231T1200Z/ ROCK SPRINGS AND GREEN RIVER-FLAMING GORGE-EAST SWEETWATER COUNTY- INCLUDING THE CITIES OF...ROCK SPRINGS...GREEN RIVER...WAMSUTTER 225 PM MST WED DEC 29 2010 ...WINTER WEATHER ADVISORY IN EFFECT FROM MIDNIGHT TONIGHT TO 5 AM MST FRIDAY... THE NATIONAL WEATHER SERVICE IN RIVERTON HAS ISSUED A WINTER WEATHER ADVISORY FOR HEAVY SNOW AND BLOWING SNOW...WHICH IS IN EFFECT FROM MIDNIGHT TONIGHT TO 5 AM MST FRIDAY. THE WINTER STORM WATCH IS NO LONGER IN EFFECT. * SUMMARY AND TIMING...LIGHT SNOW WILL DEVELOP THIS EVENING. SNOWFALL WILL BECOME HEAVY AT TIMES AFTER MIDNIGHT TONIGHT AND WILL CONTINUE THROUGH THURSDAY NIGHT. * SNOW ACCUMULATIONS...3 TO 6 INCHES WILL ACCUMULATE BY EARLY FRIDAY MORNING. * WIND AND VISIBILITY...WEST WINDS OF 15 TO 25 MPH WITH GUSTS TO 35 MPH WILL CAUSE SIGNIFICANT BLOWING AND DRIFTING SNOW...ALONG WITH POSSIBLE WHITE OUT CONDITIONS. THESE WINDS WILL SHIFT TO THE EAST NORTHEAST BY 9 AM THURSDAY AT SIMILAR SPEEDS OF 15 TO 25 MPH WITH GUSTS TO 35 MPH CONTINUING THE POTENTIAL FOR CONSIDERABLE BLOWING AND DRIFTING SNOW THROUGH THURSDAY NIGHT ALONG WITH POSSIBLE WHITE OUT CONDITIONS. IN ADDITION... WINDS WILL COMBINE WITH LOW TEMPERATURES TO PRODUCE WIND CHILLS OF 15 BELOW TO 25 BELOW BY THURSDAY NIGHT. * IMPACTS...TRAVEL ACROSS SWEETWATER COUNTY...INCLUDING INTERSTATE 80...WILL BECOME HAZARDOUS LATE TONIGHT. THOSE PLANNING OUTDOOR ACTIVITIES SHOULD BE PREPARED FOR DETERIORATING WEATHER CONDITIONS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW AND BLOWING SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$ WYZ010-011-300715- /O.EXB.KRIW.WW.Y.0045.101230T0700Z-101231T1200Z/ NORTHEAST JOHNSON COUNTY-SOUTHEAST JOHNSON COUNTY- INCLUDING THE CITIES OF...BUFFALO...KAYCEE 225 PM MST WED DEC 29 2010 ...WINTER WEATHER ADVISORY IN EFFECT FROM MIDNIGHT TONIGHT TO 5 AM MST FRIDAY... THE NATIONAL WEATHER SERVICE IN RIVERTON HAS ISSUED A WINTER WEATHER ADVISORY FOR HEAVY SNOW AND BLOWING SNOW...WHICH IS IN EFFECT FROM MIDNIGHT TONIGHT TO 5 AM MST FRIDAY. * SUMMARY AND TIMING...LIGHT SNOW WILL DEVELOP THIS EVENING. SNOWFALL WILL BECOME HEAVY AT TIMES AFTER MIDNIGHT TONIGHT AND WILL CONTINUE THROUGH THURSDAY NIGHT. * SNOW ACCUMULATIONS...3 TO 6 INCHES WILL ACCUMULATE BY EARLY FRIDAY MORNING. * WIND AND VISIBILITY...NORTH TO NORTHEAST WINDS OF 15 TO 25 MPH WITH GUSTS TO 35 MPH WILL CAUSE SIGNIFICANT BLOWING AND DRIFTING SNOW...ALONG WITH POSSIBLE WHITE OUT CONDITIONS. IN ADDITION... WINDS WILL COMBINE WITH LOW TEMPERATURES TO PRODUCE WIND CHILLS OF 15 BELOW TO 25 BELOW BY THURSDAY NIGHT. * IMPACTS...TRAVEL ACROSS JOHNSON COUNTY...INCLUDING INTERSTATES 25 AND 90...WILL BECOME HAZARDOUS LATE TONIGHT. THOSE PLANNING OUTDOOR ACTIVITIES SHOULD BE PREPARED FOR DETERIORATING WEATHER CONDITIONS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW AND BLOWING SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$ WYZ001-300700- /O.CON.KRIW.WW.Y.0045.000000T0000Z-101230T0700Z/ YELLOWSTONE NATIONAL PARK- INCLUDING THE CITIES OF...LAKE...MAMMOTH...OLD FAITHFUL 225 PM MST WED DEC 29 2010 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT MST TONIGHT... A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT MST TONIGHT. * SUMMARY AND TIMING...SNOWFALL WILL CONTINUE THROUGH LATE THIS EVENING ACROSS YELLOWSTONE PARK. PERIODS OF MODERATE TO HEAVY SNOWFALL WILL STILL BE POSSIBLE THIS AFTERNOON. * SNOW ACCUMULATIONS...THE SOUTHWESTERN PORTION OF YELLOWSTONE WILL SEE SNOWFALL AMOUNTS OF 10 TO 15 INCHES...HOWEVER THE MAJORITY OF THE PARK WILL SEE SNOWFALL OF 6 TO 10 INCHES THROUGH LATE THIS EVENING. WIDESPREAD SNOWFALL AMOUNTS OF 6 TO 10 INCHES HAVE BEEN NOTED ACROSS THE PARK THIS EVENING...WITH 12 INCHES OF SNOWFALL REPORTED AT OLD FAITHFUL. * WIND AND VISIBILITY...WIND OF 15 TO 25 MPH ARE ANTICIPATED OVER PORTIONS OF YELLOWSTONE. THIS WIND WILL CREATE BLOWING AND DRIFTING SNOW ALONG WITH LIMITED VISIBILITIES. * IMPACTS...CONDITIONS ACROSS YELLOWSTONE NATIONAL PARK ARE EXPECTED TO BECOME HAZARDOUS THIS EVENING. THOSE PLANNING OUTDOOR ACTIVITIES SHOULD BE PREPARED FOR DETERIORATING WEATHER CONDITIONS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW AND BLOWING SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$ WYZ027-300700- /O.CON.KRIW.WW.Y.0045.000000T0000Z-101230T0700Z/ SOUTH LINCOLN COUNTY- INCLUDING THE CITIES OF...KEMMERER...COKEVILLE 225 PM MST WED DEC 29 2010 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT MST TONIGHT... A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT MST TONIGHT. * SUMMARY AND TIMING...SNOWFALL WILL CONTINUE THROUGH THE EVENING HOURS. PERIODS OF LIGHT TO MODERATE SNOWFALL WILL CONTINUE LATE TONIGHT. * SNOW ACCUMULATIONS...SNOWFALL IS EXPECTED TO VARY ACROSS THE AREA WITH THIS EVENT. THE WESTERN PORTION OF SOUTHERN LINCOLN COUNTY...INCLUDING THE AREAS AROUND COKEVILLE ARE EXPECTED TO SEE SNOWFALL OF 3 TO 5 INCHES. SNOWFALL ACCUMULATIONS WILL LESSEN ACROSS THE EASTERN PORTION OF THE AREA...WITH ONLY 1 TO 2 INCHES EXPECTED. SNOWFALL OF UP TO 3 INCHES HAS BEEN REPORTED AT COKEVILLE. * WIND AND VISIBILITY...WIND OF 10 TO 20 MPH WITH GUSTS TO AROUND 30 MPH WILL BE POSSIBLE ACROSS THE AREA. THIS WILL CREATE BLOWING AND DRIFTING SNOW...WITH LIMITED VISIBILITIES ON ROADWAYS. * IMPACTS...TRAVEL THROUGH SOUTHERN LINCOLN COUNTY IS EXPECTED TO BECOME HAZARDOUS THIS EVENING. THOSE PLANNING OUTDOOR ACTIVITIES SHOULD BE PREPARED FOR DETERIORATING WEATHER CONDITIONS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW AND BLOWING SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$ WYZ013-300700- /O.CON.KRIW.WW.Y.0045.000000T0000Z-101230T0700Z/ JACKSON HOLE- INCLUDING THE CITY OF...JACKSON 225 PM MST WED DEC 29 2010 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT MST TONIGHT... A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT MST TONIGHT. * SUMMARY AND TIMING...SNOWFALL WILL CONTINUE OVER JACKSON HOLE THROUGH THIS EVENING. PERIODS OF LIGHT TO MODERATE SNOWFALL WILL CONTINUE THROUGH LATE TONIGHT. * SNOW ACCUMULATIONS...SNOWFALL IS EXPECTED TO VARY ACROSS THE AREA WITH THIS EVENT. THE SOUTHERN HALF OF THE VALLEY INCLUDING THE CITY OF JACKSON ARE EXPECTED TO SEE SNOWFALL OF 4 TO 7 INCHES. SNOWFALL ACCUMULATIONS WILL INCREASE MOVING NORTH THROUGH THE VALLEY WITH 5 TO 8 INCHES EXPECTED NEAR MOOSE AND MORAN THROUGH LATE THIS EVENING. SNOWFALL OF 5 TO 8 INCHES HAS BEEN REPORTED ACROSS THE VALLEY THIS EVENING...WITH UP TO 12 INCHES REPORTED AROUND THE COLTER BAY AREA. * WIND AND VISIBILITY...WIND OF 10 TO 15 MPH WITH GUSTS TO AROUND 20 MPH WILL BE POSSIBLE ACROSS THE VALLEY. THIS INCREASED WIND WILL CREATE BLOWING AND DRIFTING SNOW WHICH WILL LIMIT VISIBILITIES ON ROADWAYS. * IMPACTS...TRAVEL THROUGH SOUTHERN JACKSON VALLEY IS EXPECTED TO BECOME HAZARDOUS THIS EVENING. THOSE PLANNING OUTDOOR ACTIVITIES SHOULD BE PREPARED FOR DETERIORATING WEATHER CONDITIONS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW AND BLOWING SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$ WYZ014-300700- /O.CON.KRIW.WW.Y.0045.000000T0000Z-101230T0700Z/ WIND RIVER MOUNTAINS WEST- 225 PM MST WED DEC 29 2010 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT MST TONIGHT... A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT MST TONIGHT. * SUMMARY AND TIMING...SNOWFALL CONTINUES THIS AFTERNOON AND WILL BECOME HEAVY AT TIMES. SNOW IS EXPECTED TO CONTINUE THROUGH LATE TONIGHT. * SNOW ACCUMULATIONS...6 TO 12 INCHES OF SNOW IS EXPECTED BY LATE THIS EVENING. 3 TO 6 INCHES OF SNOW IS EXPECTED OVER SOUTH PASS. SNOWFALL OF UP TO 6 INCHES HAS BEEN REPORTED IN THE WESTERN SLOPES OF THE WIND RIVER MOUNTAINS. * WIND AND VISIBILITY...WEST SOUTHWEST WINDS OF 40 TO 50 MPH WITH GUSTS TO 60 TO 65 MPH CAN BE EXPECTED THIS EVENING AT TIMES OVER SOUTH PASS CAUSING OCCASIONAL NEAR ZERO VISIBILITY IN BLOWING SNOW CREATING OCCASIONAL WHITE OUT CONDITIONS. LESSER WIND SPEEDS WILL OCCUR ACROSS THE REST OF THE MOUNTAIN RANGE. * IMPACTS...TRAVEL ACROSS SOUTH PASS ON HIGHWAY 28 WILL BECOME TREACHEROUS THIS EVENING WITH BLOWING AND DRIFTING SNOW EXPECTED...IN ADDITION TO THE FALLING SNOW...CAUSING OCCASIONAL WHITE OUT CONDITIONS. THOSE PLANNING OUTDOOR ACTIVITIES SHOULD BE PREPARED FOR DETERIORATING WEATHER CONDITIONS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW AND BLOWING SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$ WYZ025-300700- /O.CON.KRIW.WW.Y.0045.000000T0000Z-101230T0700Z/ UPPER GREEN RIVER BASIN FOOTHILLS- INCLUDING THE CITY OF...PINEDALE 225 PM MST WED DEC 29 2010 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT MST TONIGHT... A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT MST TONIGHT. * SUMMARY AND TIMING...SNOWFALL WILL INCREASE IN INTENSITY THIS EVENING AND CONTINUE...HEAVY AT TIMES...THROUGH LATE TONIGHT. * SNOW ACCUMULATIONS...SNOWFALL IS EXPECTED TO VARY ACROSS THE AREA WITH THIS EVENT. 3 INCHES OF SNOW IS EXPECTED IN PINEDALE WITH AROUND 5 INCHES EXPECTED IN BONDURANT BY LATE THIS EVENING. SNOWFALL OF 3 TO 4 INCHES HAS BEEN REPORTED ACROSS THE PINEDALE FOOTHILLS. * WIND AND VISIBILITY...WIND OF 10 TO 15 MPH WITH GUSTS TO AROUND 25 MPH WILL BE POSSIBLE ACROSS THE AREA. THIS INCREASED WIND WILL CREATE BLOWING AND DRIFTING SNOW WHICH WILL LIMIT VISIBILITIES ON ROADWAYS. * IMPACTS...TRAVEL THROUGH THE UPPER GREEN RIVER BASIN IS EXPECTED TO BECOME HAZARDOUS THIS EVENING. THOSE PLANNING OUTDOOR ACTIVITIES SHOULD BE PREPARED FOR DETERIORATING WEATHER CONDITIONS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW AND BLOWING SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$
218 WWUS45 KRIW 300259 WSWRIW URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE RIVERTON WY 759 PM MST WED DEC 29 2010 ...SIGNIFICANT SNOWFALL SHIFTS EAST OF THE DIVIDE TONIGHT...LASTING THROUGH THURSDAY NIGHT... .A PACIFIC STORM SYSTEM WILL MOVE INTO THE CENTRAL GREAT BASIN TONIGHT. THEN AN ASSOCIATED TROUGH OF LOW PRESSURE WILL TRACK EAST ACROSS THE ROCKY MOUNTAINS AND AN ASSOCIATED STRONG COLD FRONT WILL TRACK SOUTH ACROSS WYOMING TONIGHT RESULTING IN DEVELOPING SNOWFALL EAST OF THE DIVIDE TONIGHT. THE MAIN LOW PRESSURE CENTER WILL THEN BECOME MORE ORGANIZED EAST OF THE DIVIDE LATE TONIGHT AND THURSDAY. THIS WILL RESULT IN PERIODS OF MODERATE TO HEAVY SNOW ALONG ACROSS PORTIONS OF CENTRAL WYOMING EAST OF THE DIVIDE LATE TONIGHT THROUGH THURSDAY NIGHT. IN ADDITION...STRONG NORTHWEST TO NORTHEAST WINDS WILL CAUSE BLOWING AND DRIFTING SNOW ACROSS SOME AREAS THROUGH THURSDAY NIGHT. COLD AIR WILL MOVE INTO THE AREA ON THURSDAY MORNING CAUSING WIND CHILLS TO DROP TO 10 TO 20 BELOW ZERO IN MANY AREAS. WYZ012-023-024-300400- /O.CAN.KRIW.WS.W.0021.000000T0000Z-101230T0700Z/ TETON AND GROS VENTRE MOUNTAINS-STAR VALLEY- SALT RIVER AND WYOMING RANGES- INCLUDING THE CITIES OF...AFTON...ALPINE...THAYNE 759 PM MST WED DEC 29 2010 ...WINTER STORM WARNING IS CANCELLED... THE NATIONAL WEATHER SERVICE IN RIVERTON HAS CANCELLED THE WINTER STORM WARNING. LIGHT SNOW IS EXPECTED TO CONTINUE OVERNIGHT...BUT ADDITIONAL SNOW ACCUMULATIONS ARE EXPECTED TO BE GENERALLY LESS THAN AN INCH IN THE VALLEYS...AND LESS THAN TWO INCHES IN THE MOUNTAINS. ALTHOUGH...THE BRUNT OF THE SNOW STORM HAS SHIFTED EAST OF THE AREA...ROADS WILL REMAIN SLICK AND TREACHEROUS. $$ WYZ013-025-300400- /O.CAN.KRIW.WW.Y.0045.000000T0000Z-101230T0700Z/ JACKSON HOLE-UPPER GREEN RIVER BASIN FOOTHILLS- INCLUDING THE CITIES OF...JACKSON...PINEDALE 759 PM MST WED DEC 29 2010 ...WINTER WEATHER ADVISORY IS CANCELLED... THE NATIONAL WEATHER SERVICE IN RIVERTON HAS CANCELLED THE WINTER WEATHER ADVISORY. LIGHT SNOW IS EXPECTED TO CONTINUE OVERNIGHT...BUT ADDITIONAL SNOW ACCUMULATIONS ARE EXPECTED TO BE GENERALLY LESS THAN AN INCH IN THE VALLEYS...AND LESS THAN TWO INCHES IN THE MOUNTAINS. ALTHOUGH...THE BRUNT OF THE SNOW STORM HAS SHIFTED EAST OF THE AREA...ROADS WILL REMAIN SLICK AND TREACHEROUS. $$ WYZ015-018-301100- /O.CON.KRIW.WS.W.0021.101230T0700Z-101231T1200Z/ WIND RIVER MOUNTAINS EAST-LANDER FOOTHILLS- INCLUDING THE CITY OF...LANDER 759 PM MST WED DEC 29 2010 ...WINTER STORM WARNING REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO 5 AM MST FRIDAY... A WINTER STORM WARNING REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO 5 AM MST FRIDAY. * SUMMARY AND TIMING...SNOWFALL WILL RAPIDLY DEVELOP BETWEEN MIDNIGHT AND 3 AM TONIGHT. THE HEAVIEST SNOWFALL WITH THIS STORM IS EXPECTED BETWEEN 3 AM AND NOON THURSDAY. * SNOW ACCUMULATIONS...8 TO 12 INCHES OF SNOWFALL IN LANDER...WITH 12 TO 16 INCHES NEAR SINKS CANYON. THE EASTERN SLOPES OF THE WIND RIVER MOUNTAINS WILL SEE 12 TO 24 INCHES OF NEW SNOW. * WIND AND VISIBILITY...NORTH TO NORTHEAST WINDS OF 10 TO 20 MPH WITH GUSTS TO 30 MPH WILL CAUSE SIGNIFICANT BLOWING AND DRIFTING SNOW...ESPECIALLY SOUTHEAST OF LANDER TOWARDS BEAVER RIM AND SOUTH PASS. IN ADDITION...WINDS WILL COMBINE WITH TEMPERATURES AROUND ZERO DEGREES TO PRODUCE WIND CHILLS AROUND 15 BELOW BY THURSDAY NIGHT. * IMPACTS...TRAVEL ACROSS THE WIND RIVER BASIN AND SOUTH PASS WILL BECOME HAZARDOUS LATE TONIGHT...AND REMAIN HAZARDOUS THROUGH THURSDAY NIGHT. THOSE PLANNING OUTDOOR ACTIVITIES SHOULD BE PREPARED FOR DETERIORATING WEATHER CONDITIONS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED OR OCCURRING. SIGNIFICANT AMOUNTS OF SNOW ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN AN EMERGENCY. IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT... FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY. && $$ WYZ020-301100- /O.CON.KRIW.WS.W.0021.101230T0700Z-101231T1200Z/ NATRONA COUNTY LOWER ELEVATIONS- INCLUDING THE CITY OF...CASPER 759 PM MST WED DEC 29 2010 ...WINTER STORM WARNING REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO 5 AM MST FRIDAY... A WINTER STORM WARNING REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO 5 AM MST FRIDAY. * SUMMARY AND TIMING...SNOWFALL WILL RAPIDLY DEVELOP BETWEEN MIDNIGHT AND 3 AM TONIGHT. SNOWFALL...HEAVY AT TIMES...WILL CONTINUE THROUGH THURSDAY NIGHT. ALTHOUGH THE HEAVIEST SNOWFALL WITH THIS STORM WILL OCCUR LATE TONIGHT AND THURSDAY. * SNOW ACCUMULATIONS...4 TO 8 INCHES OF SNOWFALL WILL ACCUMULATE ACROSS MUCH OF NATRONA COUNTY THROUGH THURSDAY NIGHT. SOUTHERN CASPER AND AREAS NEAR CASPER MOUNTAIN COULD SEE SNOWFALL AMOUNTS BETWEEN 8 AND 12 INCHES. CASPER MOUNTAIN WILL RECEIVE BETWEEN 12 AND 18 INCHES WITH ISOLATED AREAS RECEIVING TWO FEET. * WIND AND VISIBILITY...NORTH TO NORTHEAST WINDS OF 15 TO 30 MPH WITH SOME GUSTS OF 35 MPH WILL CAUSE SIGNIFICANT BLOWING AND DRIFTING SNOW. NEAR WHITEOUT CONDITIONS ARE POSSIBLE IN RURAL AREAS. WINDS WILL ALSO COMBINE WITH VERY COLD TEMPERATURES TO PRODUCE WIND CHILLS OF 10 TO 20 BELOW THURSDAY. * IMPACTS...TRAVEL ACROSS NATRONA COUNTY AS WELL AS ON CASPER MOUNTAIN WILL BECOME HAZARDOUS LATE TONIGHT...AND REMAIN HAZARDOUS THROUGH THURSDAY NIGHT. THOSE PLANNING OUTDOOR ACTIVITIES SHOULD BE PREPARED FOR DETERIORATING WEATHER CONDITIONS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING IS ISSUED WHEN SEVERE WINTER WEATHER IS EXPECTED TO OCCUR. HEAVY SNOW IS FORECAST TO ACCUMULATE IN THE AFFECTED AREAS...CAUSING HAZARDOUS DRIVING CONDITIONS. GUSTY WIND WILL ALSO CAUSE REDUCED VISIBILITIES...AS WELL AS BLOWING AND DRIFTING SNOW. THOSE WITH TRAVEL PLANS IN THE WARNING AREA ARE ADVISED TO CONSIDER POSTPONING TRAVEL...OR SHOULD USE EXTREME CAUTION IF TRAVEL IS NECESSARY. && $$ WYZ022-301100- /O.CON.KRIW.WS.W.0021.101230T0700Z-101231T1200Z/ CASPER MOUNTAIN- 759 PM MST WED DEC 29 2010 ...WINTER STORM WARNING REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO 5 AM MST FRIDAY... A WINTER STORM WARNING REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO 5 AM MST FRIDAY. * SUMMARY AND TIMING...SNOWFALL WILL RAPIDLY DEVELOP BETWEEN MIDNIGHT AND 3 AM TONIGHT. SNOWFALL...HEAVY AT TIMES...WILL CONTINUE THROUGH THURSDAY NIGHT. ALTHOUGH THE HEAVIEST SNOWFALL WITH THIS STORM WILL OCCUR LATE TONIGHT AND THURSDAY. * SNOW ACCUMULATIONS...12 AND 18 INCHES WITH ISOLATED AREAS RECEIVING TWO FEET. * WIND AND VISIBILITY...NORTH TO NORTHEAST WINDS OF 20 TO 30 MPH WITH SOME GUSTS OF 35 MPH WILL CAUSE SIGNIFICANT BLOWING AND DRIFTING SNOW...RESULTING IN NEAR WHITEOUT CONDITIONS AT TIMES. WINDS WILL ALSO COMBINE WITH VERY COLD TEMPERATURES TO PRODUCE WIND CHILLS OF 10 TO 20 BELOW THURSDAY. * IMPACTS...TRAVEL ACROSS NATRONA COUNTY AS WELL AS ON CASPER MOUNTAIN WILL BECOME HAZARDOUS LATE TONIGHT...AND REMAIN HAZARDOUS THROUGH THURSDAY NIGHT. THOSE PLANNING OUTDOOR ACTIVITIES SHOULD BE PREPARED FOR DETERIORATING WEATHER CONDITIONS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING IS ISSUED WHEN SEVERE WINTER WEATHER IS EXPECTED TO OCCUR. HEAVY SNOW IS FORECAST TO ACCUMULATE IN THE AFFECTED AREAS...CAUSING HAZARDOUS DRIVING CONDITIONS. GUSTY WIND WILL ALSO CAUSE REDUCED VISIBILITIES...AS WELL AS BLOWING AND DRIFTING SNOW. THOSE WITH TRAVEL PLANS IN THE WARNING AREA ARE ADVISED TO CONSIDER POSTPONING TRAVEL...OR SHOULD USE EXTREME CAUTION IF TRAVEL IS NECESSARY. && $$ WYZ014-301100- /O.EXT.KRIW.WW.Y.0045.000000T0000Z-101231T1200Z/ WIND RIVER MOUNTAINS WEST- 759 PM MST WED DEC 29 2010 ...WINTER WEATHER ADVISORY NOW IN EFFECT UNTIL 5 AM MST FRIDAY... THE WINTER WEATHER ADVISORY IS NOW IN EFFECT UNTIL 5 AM MST FRIDAY. * SUMMARY AND TIMING...LIGHT SNOW...OCCASIONALLY MODERATE WILL CONTINUE ACROSS THE WESTERN SLOPES OF THE WIND RIVER MOUNTAINS...ESPECIALLY ABOVE 9000 FEET. * SNOW ACCUMULATIONS...AN ADDITIONAL 1 TO 3 INCHES IS EXPECTED...WITH MUCH HIGHER AMOUNTS CLOSE TO THE CONTINENTAL DIVIDE. * WIND AND VISIBILITY...WEST SOUTHWEST WINDS OF 15 TO 30 MPH OVER SOUTH PASS WILL SWITCH TO THE NORTHEAST 15 TO 30 MPH LATE TONIGHT. THIS WIND WILL RESULT IN CONSIDERABLE BLOWING AND DRIFTING OF SNOW ACROSS SOUTH PASS...WITH VISIBILITY NEAR ZERO AT TIMES. IN ADDITION...WIND CHILLS WILL BE 10 TO 20 BELOW ZERO THURSDAY. * IMPACTS...TRAVEL ACROSS SOUTH PASS WILL BE TREACHEROUS THROUGH THURSDAY NIGHT. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW AND BLOWING SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$ WYZ001-300700- /O.CON.KRIW.WW.Y.0045.000000T0000Z-101230T0700Z/ YELLOWSTONE NATIONAL PARK- INCLUDING THE CITIES OF...LAKE...MAMMOTH...OLD FAITHFUL 759 PM MST WED DEC 29 2010 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT MST TONIGHT... A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT MST TONIGHT. * SUMMARY AND TIMING...PERIODS OF MODERATE SNOWFALL WILL CONTINUE THROUGH AROUND MIDNIGHT...TAPERING OFF TO ONLY LIGHT SNOW AFTER MIDNIGHT. * SNOW ACCUMULATIONS...AN ADDITIONAL ONE TO THREE INCHES ARE POSSIBLE TONIGHT. * WIND AND VISIBILITY...WIND OF 10 TO 20 MPH WILL CAUSE SOME BLOWING AND DRIFTING OF SNOW...WITH LIMITED VISIBILITIES. * IMPACTS...TRAVEL ACROSS YELLOWSTONE WILL REMAIN TREACHEROUS TONIGHT. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW AND BLOWING SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$ WYZ027-300700- /O.CON.KRIW.WW.Y.0045.000000T0000Z-101230T0700Z/ SOUTH LINCOLN COUNTY- INCLUDING THE CITIES OF...KEMMERER...COKEVILLE 759 PM MST WED DEC 29 2010 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT MST TONIGHT... A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT MST TONIGHT. * SUMMARY AND TIMING...LIGHT SNOWFALL IS EXPECTED TO CONTINUE TONIGHT. * SNOW ACCUMULATIONS...AN ADDITIONAL INCH OF SNOWFALL IS EXPECTED IN MOST AREAS TONIGHT. COKEVILLE HAS RECEIVED AROUND 8 INCHES OF SNOW FROM THIS SYSTEM...WHILE 2 INCHES WAS REPORTED IN KEMMERER. * WIND AND VISIBILITY...WEST WIND OF 20 TO 30 MPH WITH GUSTS TO AROUND 45 MPH WILL CREATE CONSIDERABLE BLOWING AND DRIFTING SNOW...WITH LIMITED VISIBILITIES ON ROADWAYS. * IMPACTS...TRAVEL THROUGH SOUTHERN LINCOLN COUNTY IS EXPECTED TO BECOME HAZARDOUS THIS EVENING. THOSE PLANNING OUTDOOR ACTIVITIES SHOULD BE PREPARED FOR DETERIORATING WEATHER CONDITIONS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW AND BLOWING SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$ WYZ005-007-301100- /O.CON.KRIW.WW.Y.0045.101230T0700Z-101231T1200Z/ SOUTHWEST BIG HORN BASIN-OWL CREEK AND BRIDGER MOUNTAINS- INCLUDING THE CITY OF...THERMOPOLIS 759 PM MST WED DEC 29 2010 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO 5 AM MST FRIDAY... A WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO 5 AM MST FRIDAY. * SUMMARY AND TIMING...SNOWFALL WILL RAPIDLY DEVELOP BETWEEN MIDNIGHT AND 3 AM TONIGHT. THE HEAVIEST SNOWFALL WITH THIS STORM IS EXPECTED FROM 3 AM TO AROUND NOON THURSDAY. * SNOW ACCUMULATIONS...3 TO 6 INCHES OF SNOW WILL ACCUMULATE IN THE LOWER ELEVATIONS OF HOT SPRINGS COUNTY. THE ADJACENT OWL CREEK AND BRIDGER MOUNTAINS WILL RECEIVE 6 TO 12 INCHES OF SNOW. * WIND AND VISIBILITY...NORTH TO NORTHEAST WINDS OF 20 TO 30 MPH WITH GUSTS OF 25 TO 35 MPH WILL CAUSE SIGNIFICANT BLOWING AND DRIFTING SNOW. THESE STRONG WINDS WILL RESULT IN CONSIDERABLE BLOWING AND DRIFTING OF SNOW...ESPECIALLY IN THE WIND RIVER CANYON. NEAR WHITEOUT CONDITIONS ARE POSSIBLE IN THE WIND RIVER CANYON. IN ADDITION...WINDS WILL COMBINE WITH COLD TEMPERATURES TO PRODUCE WIND CHILLS AROUND 10 BELOW THURSDAY. * IMPACTS...TRAVEL ACROSS HOT SPRINGS COUNTY...ESPECIALLY THROUGH THE WIND RIVER CANYON...WILL BECOME HAZARDOUS LATE TONIGHT...AND REMAIN HAZARDOUS THROUGH THURSDAY NIGHT. THOSE PLANNING OUTDOOR ACTIVITIES SHOULD BE PREPARED FOR DETERIORATING WEATHER CONDITIONS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW AND BLOWING SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$ WYZ010-011-301100- /O.CON.KRIW.WW.Y.0045.101230T0700Z-101231T1200Z/ NORTHEAST JOHNSON COUNTY-SOUTHEAST JOHNSON COUNTY- INCLUDING THE CITIES OF...BUFFALO...KAYCEE 759 PM MST WED DEC 29 2010 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO 5 AM MST FRIDAY... A WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO 5 AM MST FRIDAY. * SUMMARY AND TIMING...LIGHT SNOW WILL DEVELOP THIS EVENING. SNOWFALL WILL BECOME HEAVY AT TIMES AFTER MIDNIGHT TONIGHT AND WILL CONTINUE THROUGH THURSDAY NIGHT. * SNOW ACCUMULATIONS...3 TO 6 INCHES WILL ACCUMULATE BY EARLY FRIDAY MORNING. * WIND AND VISIBILITY...NORTH TO NORTHEAST WINDS OF 20 TO 30 MPH WITH GUSTS TO 45 MPH WILL CAUSE SIGNIFICANT BLOWING AND DRIFTING SNOW...ALONG WITH POSSIBLE WHITE OUT CONDITIONS. IN ADDITION...WINDS WILL COMBINE WITH COLD TEMPERATURES TO PRODUCE WIND CHILLS OF 15 BELOW TO 25 BELOW THURSDAY. * IMPACTS...TRAVEL ACROSS JOHNSON COUNTY...INCLUDING INTERSTATES 25 AND 90...WILL BECOME HAZARDOUS LATE TONIGHT. THOSE PLANNING OUTDOOR ACTIVITIES SHOULD BE PREPARED FOR DETERIORATING WEATHER CONDITIONS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW AND BLOWING SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$ WYZ017-301100- /O.CON.KRIW.WW.Y.0045.101230T0700Z-101231T1200Z/ WIND RIVER BASIN- INCLUDING THE CITIES OF...RIVERTON...SHOSHONI 759 PM MST WED DEC 29 2010 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO 5 AM MST FRIDAY... A WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO 5 AM MST FRIDAY. * SUMMARY AND TIMING...SNOWFALL WILL RAPIDLY DEVELOP BETWEEN MIDNIGHT AND 3 AM TONIGHT. THE HEAVIEST SNOWFALL WITH THIS STORM IS EXPECTED BETWEEN 3 AM AND NOON THURSDAY. * SNOW ACCUMULATIONS...ACCUMULATIONS OF 2 TO 5 INCHES WILL OCCUR ALONG WITH ISOLATED AMOUNTS OF 7 INCHES BY EARLY FRIDAY MORNING. * WIND AND VISIBILITY...NORTH TO NORTHEAST WINDS OF 15 TO 25 MPH WITH SOME GUSTS OF 35 MPH WILL CAUSE SIGNIFICANT BLOWING AND DRIFTING SNOW. IN ADDITION...WINDS WILL COMBINE WITH COLD TEMPERATURES TO PRODUCE WIND CHILLS AROUND 10 BELOW ZERO THURSDAY. * IMPACTS...TRAVEL ACROSS THE WIND RIVER BASIN WILL BECOME HAZARDOUS LATE TONIGHT...AND REMAIN HAZARDOUS THROUGH THURSDAY NIGHT. THOSE PLANNING OUTDOOR ACTIVITIES SHOULD BE PREPARED FOR DETERIORATING WEATHER CONDITIONS. A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW AND BLOWING SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$ WYZ019-301100- /O.CON.KRIW.WW.Y.0045.101230T0700Z-101231T1200Z/ GREEN MOUNTAINS AND RATTLESNAKE RANGE- INCLUDING THE CITY OF...JEFFREY CITY 759 PM MST WED DEC 29 2010 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO 5 AM MST FRIDAY... A WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO 5 AM MST FRIDAY. * SUMMARY AND TIMING...SNOWFALL WILL RAPIDLY DEVELOP BETWEEN MIDNIGHT AND 3 AM TONIGHT. SNOWFALL...HEAVY AT TIMES...WILL CONTINUE THROUGH THURSDAY NIGHT. ALTHOUGH THE HEAVIEST SNOWFALL WITH THIS STORM WILL OCCUR LATE TONIGHT AND THURSDAY. * SNOW ACCUMULATIONS...3 TO 6 INCHES WILL ACCUMULATE BY EARLY FRIDAY MORNING...WITH ISOLATED HIGHER AMOUNTS NEAR 8 INCHES. * WIND AND VISIBILITY...NORTH TO NORTHEAST WINDS OF 15 TO 25 MPH WITH GUSTS TO 35 MPH WILL CAUSE SIGNIFICANT BLOWING AND DRIFTING SNOW...ALONG WITH POSSIBLE WHITE OUT CONDITIONS. IN ADDITION... WINDS WILL COMBINE WITH COLD TEMPERATURES TO PRODUCE WIND CHILLS OF 10 BELOW TO 20 BELOW ZERO THURSDAY. * IMPACTS...TRAVEL ACROSS THE GREEN MOUNTAINS...INCLUDING HIGHWAY 287 THROUGH SWEETWATER STATION AND JEFFREY CITY...WILL BECOME HAZARDOUS LATE TONIGHT...AND REMAIN HAZARDOUS THROUGH THURSDAY NIGHT. THOSE PLANNING OUTDOOR ACTIVITIES SHOULD BE PREPARED FOR DETERIORATING WEATHER CONDITIONS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW AND BLOWING SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$ WYZ028>030-301100- /O.CON.KRIW.WW.Y.0045.101230T0700Z-101231T1200Z/ ROCK SPRINGS AND GREEN RIVER-FLAMING GORGE-EAST SWEETWATER COUNTY- INCLUDING THE CITIES OF...ROCK SPRINGS...GREEN RIVER...WAMSUTTER 759 PM MST WED DEC 29 2010 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO 5 AM MST FRIDAY... A WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO 5 AM MST FRIDAY. * SUMMARY AND TIMING...SOME LIGHT TO MODERATE SNOW IS POSSIBLE THROUGH THE REST OF THE NIGHT. HOWEVER...MORE WIDESPREAD AND HEAVIER SNOW IS EXPECTED TO DEVELOP AROUND DAYBREAK THURSDAY. PERIODS OF SNOW...MODERATE AT TIMES IS EXPECTED THROUGH THURSDAY NIGHT. * SNOW ACCUMULATIONS...2 TO 6 INCHES WILL ACCUMULATE BY EARLY FRIDAY MORNING. * WIND AND VISIBILITY...WEST WINDS OF 20 TO 30 MPH WITH GUSTS TO 45 MPH TONIGHT...WITH SHIFT TO THE NORTHEAST 20 TO 30 MPH THURSDAY MORNING AS THE ARCTIC COLD FRONT MOVES ACROSS SWEETWATER COUNTY. THESE WINDS WILL CREATE CONSIDERABLE BLOWING AND DRIFTING SNOW THROUGH THURSDAY NIGHT ALONG WITH POSSIBLE WHITE OUT CONDITIONS. IN ADDITION...WINDS WILL COMBINE WITH COLD TEMPERATURES TO PRODUCE WIND CHILLS FROM ZERO TO 20 BELOW ZERO THURSDAY. * IMPACTS...TRAVEL ACROSS SWEETWATER COUNTY...INCLUDING INTERSTATE 80...WILL BECOME HAZARDOUS TONIGHT...AND REMAIN HAZARDOUS THROUGH THURSDAY NIGHT. THOSE PLANNING OUTDOOR ACTIVITIES SHOULD BE PREPARED FOR DETERIORATING WEATHER CONDITIONS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW AND BLOWING SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$
634 WWUS45 KRIW 300700 WSWRIW URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE RIVERTON WY 1200 AM MST THU DEC 30 2010 ...SIGNIFICANT SNOWFALL SHIFTS EAST OF THE DIVIDE TONIGHT... LASTING THROUGH THURSDAY NIGHT... .A PACIFIC STORM SYSTEM MOVING EAST ACROSS THE ROCKIES...AND AN ARCTIC COLD FRONT PUSHING SOUTH WILL COMBINE FOR SIGNIFICANT SNOWFALL EAST OF THE DIVIDE AND SWEETWATER COUNTY THROUGH THURSDAY NIGHT. WINDY CONDITIONS WILL RESULT IN CONSIDERABLE BLOWING AND DRIFTING SNOW...AS WELL AS NEAR WHITEOUT CONDITIONS IN SOME AREAS. FRIGID AIR WILL BE IN PLACE IN WAKE OF THE ARCTIC COLD FRONT...WITH WIND CHILL READINGS 10 TO 30 BELOW ZERO TODAY AND THURSDAY NIGHT. WYZ001-300800- /O.EXP.KRIW.WW.Y.0045.000000T0000Z-101230T0700Z/ YELLOWSTONE NATIONAL PARK- INCLUDING THE CITIES OF...LAKE...MAMMOTH...OLD FAITHFUL 1200 AM MST THU DEC 30 2010 ...WINTER WEATHER ADVISORY WILL EXPIRE AT MIDNIGHT MST TONIGHT... THE WINTER WEATHER ADVISORY WILL EXPIRE AT MIDNIGHT MST TONIGHT. ADDITIONAL SNOWFALL TONIGHT IS EXPECTED TO BE LESS THAN AN INCH. $$ WYZ027-300800- /O.EXP.KRIW.WW.Y.0045.000000T0000Z-101230T0700Z/ SOUTH LINCOLN COUNTY- INCLUDING THE CITIES OF...KEMMERER...COKEVILLE 1200 AM MST THU DEC 30 2010 ...WINTER WEATHER ADVISORY WILL EXPIRE AT MIDNIGHT MST TONIGHT... THE WINTER WEATHER ADVISORY WILL EXPIRE AT MIDNIGHT MST TONIGHT. ADDITIONAL SNOWFALL TONIGHT IS EXPECTED TO BE LESS THAN AN INCH. HOWEVER...TRAVEL WILL REMAIN TREACHEROUS. $$ WYZ015-018-301500- /O.CON.KRIW.WS.W.0021.000000T0000Z-101231T1200Z/ WIND RIVER MOUNTAINS EAST-LANDER FOOTHILLS- INCLUDING THE CITY OF...LANDER 1200 AM MST THU DEC 30 2010 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 AM MST FRIDAY... A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 AM MST FRIDAY. * SUMMARY AND TIMING...PERIODS OF SNOW...HEAVY AT TIMES WILL OCCUR THROUGH TONIGHT. THE HEAVIEST SNOWFALL WITH THIS STORM IS EXPECTED THROUGH NOON TODAY. * SNOW ACCUMULATIONS...8 TO 12 INCHES OF SNOWFALL IN LANDER... WITH 12 TO 16 INCHES NEAR SINKS CANYON. THE EASTERN SLOPES OF THE WIND RIVER MOUNTAINS WILL SEE 12 TO 24 INCHES OF NEW SNOW. * WIND AND VISIBILITY...NORTH TO NORTHEAST WINDS OF 10 TO 20 MPH WITH GUSTS TO 30 MPH WILL CAUSE SIGNIFICANT BLOWING AND DRIFTING SNOW...ESPECIALLY SOUTHEAST OF LANDER TOWARDS BEAVER RIM AND SOUTH PASS. IN ADDITION...WINDS WILL COMBINE WITH TEMPERATURES AROUND ZERO DEGREES TO PRODUCE WIND CHILLS AROUND 15 BELOW BY THURSDAY NIGHT. * IMPACTS...TRAVEL ACROSS THE WIND RIVER BASIN AND SOUTH PASS WILL BECOME HAZARDOUS EARLY THIS MORNING...AND REMAIN HAZARDOUS THROUGH THURSDAY NIGHT. THOSE PLANNING OUTDOOR ACTIVITIES SHOULD BE PREPARED FOR DETERIORATING WEATHER CONDITIONS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED OR OCCURRING. SIGNIFICANT AMOUNTS OF SNOW ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN AN EMERGENCY. IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT... FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY. && $$ WYZ020-301500- /O.CON.KRIW.WS.W.0021.000000T0000Z-101231T1200Z/ NATRONA COUNTY LOWER ELEVATIONS- INCLUDING THE CITY OF...CASPER 1200 AM MST THU DEC 30 2010 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 AM MST FRIDAY... A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 AM MST FRIDAY. * SUMMARY AND TIMING...PERIODS OF SNOW...HEAVY AT TIMES...WILL OCCUR THROUGH TONIGHT. THE HEAVIEST SNOWFALL WITH THIS STORM IS EXPECTED THROUGH THIS AFTERNOON. * SNOW ACCUMULATIONS...4 TO 8 INCHES OF SNOWFALL WILL ACCUMULATE ACROSS MUCH OF NATRONA COUNTY THROUGH THURSDAY NIGHT. SOUTHERN CASPER AND AREAS NEAR CASPER MOUNTAIN COULD SEE SNOWFALL AMOUNTS BETWEEN 8 AND 12 INCHES. CASPER MOUNTAIN WILL RECEIVE BETWEEN 12 AND 18 INCHES WITH ISOLATED AREAS RECEIVING TWO FEET. * WIND AND VISIBILITY...NORTH TO NORTHEAST WINDS OF 15 TO 30 MPH WITH SOME GUSTS OF 35 MPH WILL CAUSE SIGNIFICANT BLOWING AND DRIFTING SNOW. NEAR WHITEOUT CONDITIONS ARE POSSIBLE IN RURAL AREAS. WINDS WILL ALSO COMBINE WITH VERY COLD TEMPERATURES TO PRODUCE WIND CHILLS OF 10 TO 20 BELOW THURSDAY. * IMPACTS...TRAVEL ACROSS NATRONA COUNTY AS WELL AS ON CASPER MOUNTAIN WILL BECOME HAZARDOUS EARLY THIS MORNING...AND REMAIN HAZARDOUS THROUGH THURSDAY NIGHT. THOSE PLANNING OUTDOOR ACTIVITIES SHOULD BE PREPARED FOR DETERIORATING WEATHER CONDITIONS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING IS ISSUED WHEN SEVERE WINTER WEATHER IS EXPECTED TO OCCUR. HEAVY SNOW IS FORECAST TO ACCUMULATE IN THE AFFECTED AREAS...CAUSING HAZARDOUS DRIVING CONDITIONS. GUSTY WIND WILL ALSO CAUSE REDUCED VISIBILITIES...AS WELL AS BLOWING AND DRIFTING SNOW. THOSE WITH TRAVEL PLANS IN THE WARNING AREA ARE ADVISED TO CONSIDER POSTPONING TRAVEL...OR SHOULD USE EXTREME CAUTION IF TRAVEL IS NECESSARY. && $$ WYZ022-301500- /O.CON.KRIW.WS.W.0021.000000T0000Z-101231T1200Z/ CASPER MOUNTAIN- 1200 AM MST THU DEC 30 2010 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 AM MST FRIDAY... A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 AM MST FRIDAY. * SUMMARY AND TIMING...PERIODS OF SNOW...HEAVY AT TIMES...WILL OCCUR THROUGH TONIGHT. THE HEAVIEST SNOWFALL WITH THIS STORM IS EXPECTED THROUGH THIS AFTERNOON. * SNOW ACCUMULATIONS...12 AND 18 INCHES WITH ISOLATED AREAS RECEIVING TWO FEET. * WIND AND VISIBILITY...NORTH TO NORTHEAST WINDS OF 20 TO 30 MPH WITH SOME GUSTS OF 35 MPH WILL CAUSE SIGNIFICANT BLOWING AND DRIFTING SNOW...RESULTING IN NEAR WHITEOUT CONDITIONS AT TIMES. WINDS WILL ALSO COMBINE WITH VERY COLD TEMPERATURES TO PRODUCE WIND CHILLS OF 10 TO 20 BELOW THURSDAY. * IMPACTS...TRAVEL ACROSS NATRONA COUNTY AS WELL AS ON CASPER MOUNTAIN WILL BECOME HAZARDOUS EARLY THIS MORNING...AND REMAIN HAZARDOUS THROUGH THURSDAY NIGHT. THOSE PLANNING OUTDOOR ACTIVITIES SHOULD BE PREPARED FOR DETERIORATING WEATHER CONDITIONS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING IS ISSUED WHEN SEVERE WINTER WEATHER IS EXPECTED TO OCCUR. HEAVY SNOW IS FORECAST TO ACCUMULATE IN THE AFFECTED AREAS...CAUSING HAZARDOUS DRIVING CONDITIONS. GUSTY WIND WILL ALSO CAUSE REDUCED VISIBILITIES...AS WELL AS BLOWING AND DRIFTING SNOW. THOSE WITH TRAVEL PLANS IN THE WARNING AREA ARE ADVISED TO CONSIDER POSTPONING TRAVEL...OR SHOULD USE EXTREME CAUTION IF TRAVEL IS NECESSARY. && $$ WYZ014-301500- /O.CON.KRIW.WW.Y.0045.000000T0000Z-101231T1200Z/ WIND RIVER MOUNTAINS WEST- 1200 AM MST THU DEC 30 2010 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST FRIDAY... A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST FRIDAY. * SUMMARY AND TIMING...LIGHT SNOW...OCCASIONALLY MODERATE WILL CONTINUE ACROSS THE WESTERN SLOPES OF THE WIND RIVER MOUNTAINS...ESPECIALLY ABOVE 9000 FEET. * SNOW ACCUMULATIONS...AN ADDITIONAL 1 TO 3 INCHES IS EXPECTED... WITH MUCH HIGHER AMOUNTS CLOSE TO THE CONTINENTAL DIVIDE. * WIND AND VISIBILITY...WEST SOUTHWEST WINDS OF 15 TO 30 MPH OVER SOUTH PASS WILL SWITCH TO THE NORTHEAST 15 TO 30 MPH LATE TONIGHT. THIS WIND WILL RESULT IN CONSIDERABLE BLOWING AND DRIFTING OF SNOW ACROSS SOUTH PASS...WITH VISIBILITY NEAR ZERO AT TIMES. IN ADDITION...WIND CHILLS WILL BE 10 TO 20 BELOW ZERO THURSDAY. * IMPACTS...TRAVEL ACROSS SOUTH PASS WILL BE TREACHEROUS THROUGH THURSDAY NIGHT. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW AND BLOWING SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$ WYZ005-007-301500- /O.CON.KRIW.WW.Y.0045.000000T0000Z-101231T1200Z/ SOUTHWEST BIG HORN BASIN-OWL CREEK AND BRIDGER MOUNTAINS- INCLUDING THE CITY OF...THERMOPOLIS 1200 AM MST THU DEC 30 2010 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST FRIDAY... A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST FRIDAY. * SUMMARY AND TIMING...PERIODS OF SNOW...HEAVY AT TIMES...WILL OCCUR THROUGH TONIGHT. THE HEAVIEST SNOWFALL WITH THIS STORM IS EXPECTED THROUGH NOON TODAY. * SNOW ACCUMULATIONS...3 TO 6 INCHES OF SNOW WILL ACCUMULATE IN THE LOWER ELEVATIONS OF HOT SPRINGS COUNTY. THE ADJACENT OWL CREEK AND BRIDGER MOUNTAINS WILL RECEIVE 6 TO 12 INCHES OF SNOW. * WIND AND VISIBILITY...NORTH TO NORTHEAST WINDS OF 20 TO 30 MPH WITH GUSTS OF 25 TO 35 MPH WILL CAUSE SIGNIFICANT BLOWING AND DRIFTING SNOW. THESE STRONG WINDS WILL RESULT IN CONSIDERABLE BLOWING AND DRIFTING OF SNOW...ESPECIALLY IN THE WIND RIVER CANYON. NEAR WHITEOUT CONDITIONS ARE POSSIBLE IN THE WIND RIVER CANYON. IN ADDITION...WINDS WILL COMBINE WITH COLD TEMPERATURES TO PRODUCE WIND CHILLS AROUND 10 BELOW THURSDAY. * IMPACTS...TRAVEL ACROSS HOT SPRINGS COUNTY...ESPECIALLY THROUGH THE WIND RIVER CANYON...WILL BECOME HAZARDOUS EARLY THIS MORNING...AND REMAIN HAZARDOUS THROUGH THURSDAY NIGHT. THOSE PLANNING OUTDOOR ACTIVITIES SHOULD BE PREPARED FOR DETERIORATING WEATHER CONDITIONS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW AND BLOWING SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$ WYZ010-011-301500- /O.CON.KRIW.WW.Y.0045.000000T0000Z-101231T1200Z/ NORTHEAST JOHNSON COUNTY-SOUTHEAST JOHNSON COUNTY- INCLUDING THE CITIES OF...BUFFALO...KAYCEE 1200 AM MST THU DEC 30 2010 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST FRIDAY... A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST FRIDAY. * SUMMARY AND TIMING...PERIODS OF SNOW...MODERATE AT TIMES...WILL OCCUR THROUGH TONIGHT. THE HEAVIEST SNOWFALL WITH THIS STORM IS EXPECTED THROUGH NOON TODAY. * SNOW ACCUMULATIONS...3 TO 6 INCHES WILL ACCUMULATE BY EARLY FRIDAY MORNING. * WIND AND VISIBILITY...NORTH TO NORTHEAST WINDS OF 20 TO 30 MPH WITH GUSTS TO 45 MPH WILL CAUSE SIGNIFICANT BLOWING AND DRIFTING SNOW...ALONG WITH POSSIBLE WHITE OUT CONDITIONS. IN ADDITION...WINDS WILL COMBINE WITH COLD TEMPERATURES TO PRODUCE WIND CHILLS OF 15 BELOW TO 25 BELOW THURSDAY. * IMPACTS...TRAVEL ACROSS JOHNSON COUNTY...INCLUDING INTERSTATES 25 AND 90...WILL BECOME HAZARDOUS EARLY THIS MORNING. THOSE PLANNING OUTDOOR ACTIVITIES SHOULD BE PREPARED FOR DETERIORATING WEATHER CONDITIONS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW AND BLOWING SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$ WYZ017-301500- /O.CON.KRIW.WW.Y.0045.000000T0000Z-101231T1200Z/ WIND RIVER BASIN- INCLUDING THE CITIES OF...RIVERTON...SHOSHONI 1200 AM MST THU DEC 30 2010 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST FRIDAY... A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST FRIDAY. * SUMMARY AND TIMING...PERIODS OF SNOW...HEAVY AT TIMES...WILL OCCUR THROUGH TONIGHT. THE HEAVIEST SNOWFALL WITH THIS STORM IS EXPECTED THROUGH NOON TODAY. * SNOW ACCUMULATIONS...ACCUMULATIONS OF 2 TO 5 INCHES WILL OCCUR ALONG WITH ISOLATED AMOUNTS OF 7 INCHES BY EARLY FRIDAY MORNING. * WIND AND VISIBILITY...NORTH TO NORTHEAST WINDS OF 15 TO 25 MPH WITH SOME GUSTS OF 35 MPH WILL CAUSE SIGNIFICANT BLOWING AND DRIFTING SNOW. IN ADDITION...WINDS WILL COMBINE WITH COLD TEMPERATURES TO PRODUCE WIND CHILLS AROUND 10 BELOW ZERO THURSDAY. * IMPACTS...TRAVEL ACROSS THE WIND RIVER BASIN WILL BECOME HAZARDOUS EARLY THIS MORNING...AND REMAIN HAZARDOUS THROUGH THURSDAY NIGHT. THOSE PLANNING OUTDOOR ACTIVITIES SHOULD BE PREPARED FOR DETERIORATING WEATHER CONDITIONS. A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW AND BLOWING SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$ WYZ019-301500- /O.CON.KRIW.WW.Y.0045.000000T0000Z-101231T1200Z/ GREEN MOUNTAINS AND RATTLESNAKE RANGE- INCLUDING THE CITY OF...JEFFREY CITY 1200 AM MST THU DEC 30 2010 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST FRIDAY... A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST FRIDAY. * SUMMARY AND TIMING...PERIODS OF SNOW...HEAVY AT TIMES...WILL OCCUR THROUGH TONIGHT. THE HEAVIEST SNOWFALL WITH THIS STORM IS EXPECTED THROUGH THIS AFTERNOON. * SNOW ACCUMULATIONS...3 TO 6 INCHES WILL ACCUMULATE BY EARLY FRIDAY MORNING...WITH ISOLATED HIGHER AMOUNTS NEAR 8 INCHES. * WIND AND VISIBILITY...NORTH TO NORTHEAST WINDS OF 15 TO 25 MPH WITH GUSTS TO 35 MPH WILL CAUSE SIGNIFICANT BLOWING AND DRIFTING SNOW...ALONG WITH POSSIBLE WHITE OUT CONDITIONS. IN ADDITION... WINDS WILL COMBINE WITH COLD TEMPERATURES TO PRODUCE WIND CHILLS OF 10 BELOW TO 20 BELOW ZERO THURSDAY. * IMPACTS...TRAVEL ACROSS THE GREEN MOUNTAINS...INCLUDING HIGHWAY 287 THROUGH SWEETWATER STATION AND JEFFREY CITY...WILL BECOME HAZARDOUS EARLY THIS MORNING...AND REMAIN HAZARDOUS THROUGH THURSDAY NIGHT. THOSE PLANNING OUTDOOR ACTIVITIES SHOULD BE PREPARED FOR DETERIORATING WEATHER CONDITIONS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW AND BLOWING SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$ WYZ028>030-301500- /O.CON.KRIW.WW.Y.0045.000000T0000Z-101231T1200Z/ ROCK SPRINGS AND GREEN RIVER-FLAMING GORGE-EAST SWEETWATER COUNTY- INCLUDING THE CITIES OF...ROCK SPRINGS...GREEN RIVER...WAMSUTTER 1200 AM MST THU DEC 30 2010 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST FRIDAY... A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST FRIDAY. * SUMMARY AND TIMING...PERIODS OF SNOW...HEAVY AT TIMES...WILL OCCUR THROUGH TONIGHT. THE HEAVIEST SNOWFALL WITH THIS STORM IS EXPECTED THROUGH THIS AFTERNOON. * SNOW ACCUMULATIONS...3 TO 6 INCHES WILL ACCUMULATE BY EARLY FRIDAY MORNING. * WIND AND VISIBILITY...WEST WINDS OF 20 TO 30 MPH WITH GUSTS TO 45 MPH TONIGHT...WITH SHIFT TO THE NORTHEAST 20 TO 30 MPH THURSDAY MORNING AS THE ARCTIC COLD FRONT MOVES ACROSS SWEETWATER COUNTY. THESE WINDS WILL CREATE CONSIDERABLE BLOWING AND DRIFTING SNOW THROUGH THURSDAY NIGHT ALONG WITH POSSIBLE WHITE OUT CONDITIONS. IN ADDITION...WINDS WILL COMBINE WITH COLD TEMPERATURES TO PRODUCE WIND CHILLS FROM ZERO TO 20 BELOW ZERO THURSDAY. * IMPACTS...TRAVEL ACROSS SWEETWATER COUNTY...INCLUDING INTERSTATE 80...WILL BECOME HAZARDOUS TONIGHT...AND REMAIN HAZARDOUS THROUGH THURSDAY NIGHT. THOSE PLANNING OUTDOOR ACTIVITIES SHOULD BE PREPARED FOR DETERIORATING WEATHER CONDITIONS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW AND BLOWING SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$
096 WWUS45 KRIW 300855 WSWRIW URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE RIVERTON WY 155 AM MST THU DEC 30 2010 ...SIGNIFICANT SNOWFALL SHIFTS EAST OF THE DIVIDE TONIGHT... LASTING THROUGH THURSDAY NIGHT... .A PACIFIC STORM SYSTEM MOVING EAST ACROSS THE ROCKIES...AND AN ARCTIC COLD FRONT PUSHING SOUTH WILL COMBINE FOR SIGNIFICANT SNOWFALL EAST OF THE DIVIDE AND SWEETWATER COUNTY THROUGH THURSDAY NIGHT. WINDY CONDITIONS WILL RESULT IN CONSIDERABLE BLOWING AND DRIFTING SNOW...AS WELL AS NEAR WHITEOUT CONDITIONS IN SOME AREAS. FRIGID AIR WILL BE IN PLACE IN WAKE OF THE ARCTIC COLD FRONT...WITH WIND CHILL READINGS 10 TO 30 BELOW ZERO TODAY AND THURSDAY NIGHT. WYZ015-018-301100- /O.CON.KRIW.WS.W.0021.000000T0000Z-101231T1200Z/ WIND RIVER MOUNTAINS EAST-LANDER FOOTHILLS- INCLUDING THE CITY OF...LANDER 155 AM MST THU DEC 30 2010 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 AM MST FRIDAY... A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 AM MST FRIDAY. * SUMMARY AND TIMING...PERIODS OF SNOW...HEAVY AT TIMES WILL OCCUR THROUGH TONIGHT. THE HEAVIEST SNOWFALL WITH THIS STORM IS EXPECTED THROUGH NOON TODAY. * SNOW ACCUMULATIONS...8 TO 12 INCHES OF SNOWFALL IN LANDER... WITH 12 TO 16 INCHES NEAR SINKS CANYON. THE EASTERN SLOPES OF THE WIND RIVER MOUNTAINS WILL SEE 12 TO 24 INCHES OF NEW SNOW. * WIND AND VISIBILITY...NORTH TO NORTHEAST WINDS OF 10 TO 20 MPH WITH GUSTS TO 30 MPH WILL CAUSE SIGNIFICANT BLOWING AND DRIFTING SNOW...ESPECIALLY SOUTHEAST OF LANDER TOWARDS BEAVER RIM AND SOUTH PASS. IN ADDITION...WINDS WILL COMBINE WITH TEMPERATURES AROUND ZERO DEGREES TO PRODUCE WIND CHILLS AROUND 15 BELOW BY THURSDAY NIGHT. * IMPACTS...TRAVEL ACROSS THE WIND RIVER BASIN AND SOUTH PASS WILL BECOME HAZARDOUS EARLY THIS MORNING...AND REMAIN HAZARDOUS THROUGH THURSDAY NIGHT. THOSE PLANNING OUTDOOR ACTIVITIES SHOULD BE PREPARED FOR DETERIORATING WEATHER CONDITIONS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED OR OCCURRING. SIGNIFICANT AMOUNTS OF SNOW ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN AN EMERGENCY. IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT... FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY. && $$ WYZ020-301100- /O.CON.KRIW.WS.W.0021.000000T0000Z-101231T1200Z/ NATRONA COUNTY LOWER ELEVATIONS- INCLUDING THE CITY OF...CASPER 155 AM MST THU DEC 30 2010 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 AM MST FRIDAY... A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 AM MST FRIDAY. * SUMMARY AND TIMING...PERIODS OF SNOW...HEAVY AT TIMES...WILL OCCUR THROUGH TONIGHT. THE HEAVIEST SNOWFALL WITH THIS STORM IS EXPECTED THROUGH THIS AFTERNOON. * SNOW ACCUMULATIONS...4 TO 8 INCHES OF SNOWFALL WILL ACCUMULATE ACROSS MUCH OF NATRONA COUNTY THROUGH THURSDAY NIGHT. SOUTHERN CASPER AND AREAS NEAR CASPER MOUNTAIN COULD SEE SNOWFALL AMOUNTS BETWEEN 8 AND 12 INCHES. CASPER MOUNTAIN WILL RECEIVE BETWEEN 12 AND 18 INCHES WITH ISOLATED AREAS RECEIVING TWO FEET. * WIND AND VISIBILITY...NORTH TO NORTHEAST WINDS OF 15 TO 30 MPH WITH SOME GUSTS OF 35 MPH WILL CAUSE SIGNIFICANT BLOWING AND DRIFTING SNOW. NEAR WHITEOUT CONDITIONS ARE POSSIBLE IN RURAL AREAS. WINDS WILL ALSO COMBINE WITH VERY COLD TEMPERATURES TO PRODUCE WIND CHILLS OF 10 TO 20 BELOW THURSDAY. * IMPACTS...TRAVEL ACROSS NATRONA COUNTY AS WELL AS ON CASPER MOUNTAIN WILL BECOME HAZARDOUS EARLY THIS MORNING...AND REMAIN HAZARDOUS THROUGH THURSDAY NIGHT. THOSE PLANNING OUTDOOR ACTIVITIES SHOULD BE PREPARED FOR DETERIORATING WEATHER CONDITIONS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING IS ISSUED WHEN SEVERE WINTER WEATHER IS EXPECTED TO OCCUR. HEAVY SNOW IS FORECAST TO ACCUMULATE IN THE AFFECTED AREAS...CAUSING HAZARDOUS DRIVING CONDITIONS. GUSTY WIND WILL ALSO CAUSE REDUCED VISIBILITIES...AS WELL AS BLOWING AND DRIFTING SNOW. THOSE WITH TRAVEL PLANS IN THE WARNING AREA ARE ADVISED TO CONSIDER POSTPONING TRAVEL...OR SHOULD USE EXTREME CAUTION IF TRAVEL IS NECESSARY. && $$ WYZ022-301100- /O.CON.KRIW.WS.W.0021.000000T0000Z-101231T1200Z/ CASPER MOUNTAIN- 155 AM MST THU DEC 30 2010 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 AM MST FRIDAY... A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 AM MST FRIDAY. * SUMMARY AND TIMING...PERIODS OF SNOW...HEAVY AT TIMES...WILL OCCUR THROUGH TONIGHT. THE HEAVIEST SNOWFALL WITH THIS STORM IS EXPECTED THROUGH THIS AFTERNOON. * SNOW ACCUMULATIONS...12 AND 18 INCHES WITH ISOLATED AREAS RECEIVING TWO FEET. * WIND AND VISIBILITY...NORTH TO NORTHEAST WINDS OF 20 TO 30 MPH WITH SOME GUSTS OF 35 MPH WILL CAUSE SIGNIFICANT BLOWING AND DRIFTING SNOW...RESULTING IN NEAR WHITEOUT CONDITIONS AT TIMES. WINDS WILL ALSO COMBINE WITH VERY COLD TEMPERATURES TO PRODUCE WIND CHILLS OF 10 TO 20 BELOW THURSDAY. * IMPACTS...TRAVEL ACROSS NATRONA COUNTY AS WELL AS ON CASPER MOUNTAIN WILL BECOME HAZARDOUS EARLY THIS MORNING...AND REMAIN HAZARDOUS THROUGH THURSDAY NIGHT. THOSE PLANNING OUTDOOR ACTIVITIES SHOULD BE PREPARED FOR DETERIORATING WEATHER CONDITIONS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING IS ISSUED WHEN SEVERE WINTER WEATHER IS EXPECTED TO OCCUR. HEAVY SNOW IS FORECAST TO ACCUMULATE IN THE AFFECTED AREAS...CAUSING HAZARDOUS DRIVING CONDITIONS. GUSTY WIND WILL ALSO CAUSE REDUCED VISIBILITIES...AS WELL AS BLOWING AND DRIFTING SNOW. THOSE WITH TRAVEL PLANS IN THE WARNING AREA ARE ADVISED TO CONSIDER POSTPONING TRAVEL...OR SHOULD USE EXTREME CAUTION IF TRAVEL IS NECESSARY. && $$ WYZ006-301100- /O.EXB.KRIW.WW.Y.0045.000000T0000Z-101230T1800Z/ SOUTHEAST BIG HORN BASIN- INCLUDING THE CITY OF...WORLAND 155 AM MST THU DEC 30 2010 ...WINTER WEATHER ADVISORY IN EFFECT UNTIL 11 AM MST THIS MORNING... THE NATIONAL WEATHER SERVICE IN RIVERTON HAS ISSUED A WINTER WEATHER ADVISORY FOR THE SOUTHEAST BIG HORN BASIN WHICH IS IN EFFECT UNTIL 11 AM MST THIS MORNING. * SUMMARY AND TIMING...PERIODS OF SNOW...HEAVY AT TIMES...WILL OCCUR THROUGH 11 AM THIS MORNING. * SNOW ACCUMULATIONS...4 TO 5 INCHES WILL ACCUMULATE BY 11 AM THIS MORNING. * WIND AND VISIBILITY...NORTHWEST WINDS OF 10 TO 20 MPH WILL CREATE SOME BLOWING AND DRIFTING SNOW TODAY. IN ADDITION...WINDS WILL COMBINE WITH COLD TEMPERATURES TO PRODUCE WIND CHILLS FROM 10 TO 20 BELOW ZERO THURSDAY. * IMPACTS...TRAVEL ACROSS WASHAKIE COUNTY WILL BE HAZARDOUS TODAY WITH SLICK AND SNOW PACKED ROADS AND POOR VISIBILITY. THOSE PLANNING OUTDOOR ACTIVITIES SHOULD BE PREPARED FOR DETERIORATING WEATHER CONDITIONS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW AND BLOWING SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$ WYZ014-301100- /O.CON.KRIW.WW.Y.0045.000000T0000Z-101231T1200Z/ WIND RIVER MOUNTAINS WEST- 155 AM MST THU DEC 30 2010 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST FRIDAY... A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST FRIDAY. * SUMMARY AND TIMING...LIGHT SNOW...OCCASIONALLY MODERATE WILL CONTINUE ACROSS THE WESTERN SLOPES OF THE WIND RIVER MOUNTAINS...ESPECIALLY ABOVE 9000 FEET. * SNOW ACCUMULATIONS...AN ADDITIONAL 1 TO 3 INCHES IS EXPECTED... WITH MUCH HIGHER AMOUNTS CLOSE TO THE CONTINENTAL DIVIDE. * WIND AND VISIBILITY...WEST SOUTHWEST WINDS OF 15 TO 30 MPH OVER SOUTH PASS WILL SWITCH TO THE NORTHEAST 15 TO 30 MPH LATE TONIGHT. THIS WIND WILL RESULT IN CONSIDERABLE BLOWING AND DRIFTING OF SNOW ACROSS SOUTH PASS...WITH VISIBILITY NEAR ZERO AT TIMES. IN ADDITION...WIND CHILLS WILL BE 10 TO 20 BELOW ZERO THURSDAY. * IMPACTS...TRAVEL ACROSS SOUTH PASS WILL BE TREACHEROUS THROUGH THURSDAY NIGHT. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW AND BLOWING SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$ WYZ005-007-301100- /O.CON.KRIW.WW.Y.0045.000000T0000Z-101231T1200Z/ SOUTHWEST BIG HORN BASIN-OWL CREEK AND BRIDGER MOUNTAINS- INCLUDING THE CITY OF...THERMOPOLIS 155 AM MST THU DEC 30 2010 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST FRIDAY... A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST FRIDAY. * SUMMARY AND TIMING...PERIODS OF SNOW...HEAVY AT TIMES...WILL OCCUR THROUGH TONIGHT. THE HEAVIEST SNOWFALL WITH THIS STORM IS EXPECTED THROUGH NOON TODAY. * SNOW ACCUMULATIONS...3 TO 6 INCHES OF SNOW WILL ACCUMULATE IN THE LOWER ELEVATIONS OF HOT SPRINGS COUNTY. THE ADJACENT OWL CREEK AND BRIDGER MOUNTAINS WILL RECEIVE 6 TO 12 INCHES OF SNOW. * WIND AND VISIBILITY...NORTH TO NORTHEAST WINDS OF 20 TO 30 MPH WITH GUSTS OF 25 TO 35 MPH WILL CAUSE SIGNIFICANT BLOWING AND DRIFTING SNOW. THESE STRONG WINDS WILL RESULT IN CONSIDERABLE BLOWING AND DRIFTING OF SNOW...ESPECIALLY IN THE WIND RIVER CANYON. NEAR WHITEOUT CONDITIONS ARE POSSIBLE IN THE WIND RIVER CANYON. IN ADDITION...WINDS WILL COMBINE WITH COLD TEMPERATURES TO PRODUCE WIND CHILLS AROUND 10 BELOW THURSDAY. * IMPACTS...TRAVEL ACROSS HOT SPRINGS COUNTY...ESPECIALLY THROUGH THE WIND RIVER CANYON...WILL BECOME HAZARDOUS EARLY THIS MORNING...AND REMAIN HAZARDOUS THROUGH THURSDAY NIGHT. THOSE PLANNING OUTDOOR ACTIVITIES SHOULD BE PREPARED FOR DETERIORATING WEATHER CONDITIONS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW AND BLOWING SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$ WYZ010-011-301100- /O.CON.KRIW.WW.Y.0045.000000T0000Z-101231T1200Z/ NORTHEAST JOHNSON COUNTY-SOUTHEAST JOHNSON COUNTY- INCLUDING THE CITIES OF...BUFFALO...KAYCEE 155 AM MST THU DEC 30 2010 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST FRIDAY... A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST FRIDAY. * SUMMARY AND TIMING...PERIODS OF SNOW...MODERATE AT TIMES... WILL OCCUR THROUGH TONIGHT. THE HEAVIEST SNOWFALL WITH THIS STORM IS EXPECTED THROUGH NOON TODAY. * SNOW ACCUMULATIONS...3 TO 6 INCHES WILL ACCUMULATE BY EARLY FRIDAY MORNING. * WIND AND VISIBILITY...NORTH TO NORTHEAST WINDS OF 20 TO 30 MPH WITH GUSTS TO 45 MPH WILL CAUSE SIGNIFICANT BLOWING AND DRIFTING SNOW...ALONG WITH POSSIBLE WHITE OUT CONDITIONS. IN ADDITION...WINDS WILL COMBINE WITH COLD TEMPERATURES TO PRODUCE WIND CHILLS OF 15 BELOW TO 25 BELOW THURSDAY. * IMPACTS...TRAVEL ACROSS JOHNSON COUNTY...INCLUDING INTERSTATES 25 AND 90...WILL BECOME HAZARDOUS EARLY THIS MORNING. THOSE PLANNING OUTDOOR ACTIVITIES SHOULD BE PREPARED FOR DETERIORATING WEATHER CONDITIONS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW AND BLOWING SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$ WYZ017-301100- /O.CON.KRIW.WW.Y.0045.000000T0000Z-101231T1200Z/ WIND RIVER BASIN- INCLUDING THE CITIES OF...RIVERTON...SHOSHONI 155 AM MST THU DEC 30 2010 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST FRIDAY... A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST FRIDAY. * SUMMARY AND TIMING...PERIODS OF SNOW...HEAVY AT TIMES...WILL OCCUR THROUGH TONIGHT. THE HEAVIEST SNOWFALL WITH THIS STORM IS EXPECTED THROUGH NOON TODAY. * SNOW ACCUMULATIONS...ACCUMULATIONS OF 2 TO 5 INCHES WILL OCCUR ALONG WITH ISOLATED AMOUNTS OF 7 INCHES BY EARLY FRIDAY MORNING. * WIND AND VISIBILITY...NORTH TO NORTHEAST WINDS OF 15 TO 25 MPH WITH SOME GUSTS OF 35 MPH WILL CAUSE SIGNIFICANT BLOWING AND DRIFTING SNOW. IN ADDITION...WINDS WILL COMBINE WITH COLD TEMPERATURES TO PRODUCE WIND CHILLS AROUND 10 BELOW ZERO THURSDAY. * IMPACTS...TRAVEL ACROSS THE WIND RIVER BASIN WILL BECOME HAZARDOUS EARLY THIS MORNING...AND REMAIN HAZARDOUS THROUGH THURSDAY NIGHT. THOSE PLANNING OUTDOOR ACTIVITIES SHOULD BE PREPARED FOR DETERIORATING WEATHER CONDITIONS. A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW AND BLOWING SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$ WYZ019-301100- /O.CON.KRIW.WW.Y.0045.000000T0000Z-101231T1200Z/ GREEN MOUNTAINS AND RATTLESNAKE RANGE- INCLUDING THE CITY OF...JEFFREY CITY 155 AM MST THU DEC 30 2010 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST FRIDAY... A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST FRIDAY. * SUMMARY AND TIMING...PERIODS OF SNOW...HEAVY AT TIMES...WILL OCCUR THROUGH TONIGHT. THE HEAVIEST SNOWFALL WITH THIS STORM IS EXPECTED THROUGH THIS AFTERNOON. * SNOW ACCUMULATIONS...3 TO 6 INCHES WILL ACCUMULATE BY EARLY FRIDAY MORNING...WITH ISOLATED HIGHER AMOUNTS NEAR 8 INCHES. * WIND AND VISIBILITY...NORTH TO NORTHEAST WINDS OF 15 TO 25 MPH WITH GUSTS TO 35 MPH WILL CAUSE SIGNIFICANT BLOWING AND DRIFTING SNOW...ALONG WITH POSSIBLE WHITE OUT CONDITIONS. IN ADDITION... WINDS WILL COMBINE WITH COLD TEMPERATURES TO PRODUCE WIND CHILLS OF 10 BELOW TO 20 BELOW ZERO THURSDAY. * IMPACTS...TRAVEL ACROSS THE GREEN MOUNTAINS...INCLUDING HIGHWAY 287 THROUGH SWEETWATER STATION AND JEFFREY CITY...WILL BECOME HAZARDOUS EARLY THIS MORNING...AND REMAIN HAZARDOUS THROUGH THURSDAY NIGHT. THOSE PLANNING OUTDOOR ACTIVITIES SHOULD BE PREPARED FOR DETERIORATING WEATHER CONDITIONS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW AND BLOWING SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$ WYZ028>030-301100- /O.CON.KRIW.WW.Y.0045.000000T0000Z-101231T1200Z/ ROCK SPRINGS AND GREEN RIVER-FLAMING GORGE-EAST SWEETWATER COUNTY- INCLUDING THE CITIES OF...ROCK SPRINGS...GREEN RIVER...WAMSUTTER 155 AM MST THU DEC 30 2010 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST FRIDAY... A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST FRIDAY. * SUMMARY AND TIMING...PERIODS OF SNOW...HEAVY AT TIMES...WILL OCCUR THROUGH TONIGHT. THE HEAVIEST SNOWFALL WITH THIS STORM IS EXPECTED THROUGH THIS AFTERNOON. * SNOW ACCUMULATIONS...3 TO 6 INCHES WILL ACCUMULATE BY EARLY FRIDAY MORNING. * WIND AND VISIBILITY...WEST WINDS OF 20 TO 30 MPH WITH GUSTS TO 45 MPH TONIGHT...WITH SHIFT TO THE NORTHEAST 20 TO 30 MPH THURSDAY MORNING AS THE ARCTIC COLD FRONT MOVES ACROSS SWEETWATER COUNTY. THESE WINDS WILL CREATE CONSIDERABLE BLOWING AND DRIFTING SNOW THROUGH THURSDAY NIGHT ALONG WITH POSSIBLE WHITE OUT CONDITIONS. IN ADDITION...WINDS WILL COMBINE WITH COLD TEMPERATURES TO PRODUCE WIND CHILLS FROM ZERO TO 20 BELOW ZERO THURSDAY. * IMPACTS...TRAVEL ACROSS SWEETWATER COUNTY...INCLUDING INTERSTATE 80...WILL BECOME HAZARDOUS TONIGHT...AND REMAIN HAZARDOUS THROUGH THURSDAY NIGHT. THOSE PLANNING OUTDOOR ACTIVITIES SHOULD BE PREPARED FOR DETERIORATING WEATHER CONDITIONS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW AND BLOWING SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$
590 WWUS45 KRIW 301159 WSWRIW URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE RIVERTON WY 459 AM MST THU DEC 30 2010 ...SIGNIFICANT SNOWFALL HAS SHIFTED EAST OF THE DIVIDE AND WILL CONTINUE TODAY THROUGH TONIGHT... .A PACIFIC STORM SYSTEM MOVING EAST ACROSS THE ROCKIES...AND AN ARCTIC COLD FRONT PUSHING SOUTH WILL COMBINE FOR SIGNIFICANT SNOWFALL EAST OF THE DIVIDE AND SWEETWATER COUNTY THROUGH TONIGHT. WINDY CONDITIONS WILL RESULT IN CONSIDERABLE BLOWING AND DRIFTING SNOW...AS WELL AS NEAR WHITEOUT CONDITIONS IN SOME AREAS. FRIGID AIR WILL BE IN PLACE IN THE WAKE OF THE ARCTIC COLD FRONT...WITH WIND CHILL READINGS 10 TO 30 BELOW ZERO TODAY AND TONIGHT. WYZ028>030-302000- /O.UPG.KRIW.WW.Y.0045.000000T0000Z-101231T1200Z/ /O.EXA.KRIW.WS.W.0021.000000T0000Z-101231T1200Z/ ROCK SPRINGS AND GREEN RIVER-FLAMING GORGE-EAST SWEETWATER COUNTY- INCLUDING THE CITIES OF...ROCK SPRINGS...GREEN RIVER...WAMSUTTER 459 AM MST THU DEC 30 2010 ...WINTER STORM WARNING IN EFFECT UNTIL 5 AM MST FRIDAY... THE NATIONAL WEATHER SERVICE IN RIVERTON HAS ISSUED A WINTER STORM WARNING FOR SWEETWATER COUNTY WHICH IS IN EFFECT UNTIL 5 AM MST FRIDAY. THE WINTER WEATHER ADVISORY IS NO LONGER IN EFFECT. * SUMMARY AND TIMING...PERIODS OF SNOW WILL CONTINUE THIS MORNING...BECOMING HEAVY AT TIMES LATER THIS MORNING...AND WILL CONTINUE THIS AFTERNOON THROUGH TONIGHT. THE HEAVIEST SNOWFALL WITH THIS STORM IS EXPECTED THROUGH THIS AFTERNOON. * SNOW ACCUMULATIONS...2 INCHES OF SNOW HAS FALLEN IN ROCK SPRINGS SO FAR. 3 TO 6 INCHES WILL ACCUMULATE BY EARLY FRIDAY MORNING. * WIND AND VISIBILITY...WEST WINDS OF 20 TO 30 MPH WITH GUSTS TO 45 MPH TONIGHT...WITH SHIFT TO THE NORTHEAST 20 TO 30 MPH LATER THIS MORNING AS THE ARCTIC COLD FRONT MOVES ACROSS SWEETWATER COUNTY. THESE WINDS WILL CREATE CONSIDERABLE BLOWING AND DRIFTING SNOW THROUGH TONIGHT ALONG WITH WHITE OUT CONDITIONS. IN ADDITION...WINDS WILL COMBINE WITH COLD TEMPERATURES TO PRODUCE WIND CHILLS FROM ZERO TO 20 BELOW ZERO THURSDAY. * IMPACTS...TRAVEL ACROSS SWEETWATER COUNTY...INCLUDING INTERSTATE 80...WILL BECOME HAZARDOUS AND REMAIN HAZARDOUS THROUGH TONIGHT. THOSE PLANNING OUTDOOR ACTIVITIES SHOULD BE PREPARED FOR DETERIORATING WEATHER CONDITIONS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED OR OCCURRING. SIGNIFICANT AMOUNTS OF SNOW ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN AN EMERGENCY. IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT... FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY. && $$ WYZ019-302000- /O.UPG.KRIW.WW.Y.0045.000000T0000Z-101231T1200Z/ /O.EXA.KRIW.WS.W.0021.000000T0000Z-101231T1200Z/ GREEN MOUNTAINS AND RATTLESNAKE RANGE- INCLUDING THE CITY OF...JEFFREY CITY 459 AM MST THU DEC 30 2010 ...WINTER STORM WARNING IN EFFECT UNTIL 5 AM MST FRIDAY... THE NATIONAL WEATHER SERVICE IN RIVERTON HAS ISSUED A WINTER STORM WARNING FOR THE GREEN MOUNTAINS WHICH IS IN EFFECT UNTIL 5 AM MST FRIDAY. THE WINTER WEATHER ADVISORY IS NO LONGER IN EFFECT. * SUMMARY AND TIMING...PERIODS OF SNOW...HEAVY AT TIMES...WILL OCCUR THROUGH TONIGHT. THE HEAVIEST SNOWFALL WITH THIS STORM IS EXPECTED THROUGH THIS AFTERNOON. * SNOW ACCUMULATIONS...3 TO 6 INCHES WILL ACCUMULATE BY EARLY FRIDAY MORNING...WITH ISOLATED HIGHER AMOUNTS NEAR 8 INCHES. * WIND AND VISIBILITY...NORTH TO NORTHEAST WINDS OF 15 TO 25 MPH WITH SOME GUSTS TO 45 MPH WILL CAUSE SIGNIFICANT BLOWING AND DRIFTING SNOW...ALONG WITH POSSIBLE WHITE OUT CONDITIONS. IN ADDITION... WINDS WILL COMBINE WITH COLD TEMPERATURES TO PRODUCE WIND CHILLS OF 10 BELOW TO 20 BELOW ZERO THURSDAY. * IMPACTS...TRAVEL ACROSS THE GREEN MOUNTAINS...INCLUDING HIGHWAY 287 THROUGH SWEETWATER STATION AND JEFFREY CITY...WILL BECOME HAZARDOUS EARLY THIS MORNING...AND REMAIN HAZARDOUS THROUGH TONIGHT. THOSE PLANNING OUTDOOR ACTIVITIES SHOULD BE PREPARED FOR DETERIORATING WEATHER CONDITIONS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED OR OCCURRING. SIGNIFICANT AMOUNTS OF SNOW ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN AN EMERGENCY. IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT... FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY. && $$ WYZ015-018-302000- /O.CON.KRIW.WS.W.0021.000000T0000Z-101231T1200Z/ WIND RIVER MOUNTAINS EAST-LANDER FOOTHILLS- INCLUDING THE CITY OF...LANDER 459 AM MST THU DEC 30 2010 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 AM MST FRIDAY... A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 AM MST FRIDAY. * SUMMARY AND TIMING...PERIODS OF SNOW...HEAVY AT TIMES WILL OCCUR THROUGH TONIGHT. THE HEAVIEST SNOWFALL WITH THIS STORM IS EXPECTED THIS AFTERNOON AND EVENING. * SNOW ACCUMULATIONS...11 INCHES OF SNOW HAS FALLEN ON THE EAST SLOPES OF THE WIND RIVER MOUNTAINS WITH AROUND 9 INCHES OF IT HAVING FALLEN WEDNESDAY AND 2 INCHES INCHES OF IT EARLY THIS MORNING. 8 TO 12 INCHES OF SNOWFALL IN LANDER... WITH 12 TO 16 INCHES NEAR SINKS CANYON ARE EXPECTED BY LATE TONIGHT. THE EASTERN SLOPES OF THE WIND RIVER MOUNTAINS WILL SEE 12 TO 24 INCHES OF NEW SNOW. * WIND AND VISIBILITY...NORTH TO NORTHEAST WINDS OF 10 TO 20 MPH WITH GUSTS TO 30 MPH WILL CAUSE SIGNIFICANT BLOWING AND DRIFTING SNOW...ESPECIALLY SOUTHEAST OF LANDER TOWARDS BEAVER RIM AND SOUTH PASS. IN ADDITION...WINDS WILL COMBINE WITH TEMPERATURES AROUND ZERO DEGREES TO PRODUCE WIND CHILLS AROUND 15 BELOW BY TONIGHT. * IMPACTS...TRAVEL ACROSS THE WIND RIVER BASIN AND SOUTH PASS WILL BECOME HAZARDOUS EARLY THIS MORNING...AND REMAIN HAZARDOUS THROUGH TONIGHT. THOSE PLANNING OUTDOOR ACTIVITIES SHOULD BE PREPARED FOR DETERIORATING WEATHER CONDITIONS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED OR OCCURRING. SIGNIFICANT AMOUNTS OF SNOW ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN AN EMERGENCY. IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT... FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY. && $$ WYZ020-302000- /O.CON.KRIW.WS.W.0021.000000T0000Z-101231T1200Z/ NATRONA COUNTY LOWER ELEVATIONS- INCLUDING THE CITY OF...CASPER 459 AM MST THU DEC 30 2010 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 AM MST FRIDAY... A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 AM MST FRIDAY. * SUMMARY AND TIMING...PERIODS OF SNOW...HEAVY AT TIMES...WILL OCCUR THROUGH TONIGHT. THE HEAVIEST SNOWFALL WITH THIS STORM IS EXPECTED THROUGH THIS AFTERNOON AND EVENING. * SNOW ACCUMULATIONS...3 INCHES OF SNOW HAS FALLEN OVER THE CASPER AREA ALONG WITH 4 INCHES ON CASPER MOUNTAIN. 4 TO 8 INCHES OF SNOWFALL WILL ACCUMULATE ACROSS MUCH OF NATRONA COUNTY THROUGH TONIGHT. SOUTHERN CASPER AND AREAS NEAR CASPER MOUNTAIN COULD SEE SNOWFALL AMOUNTS BETWEEN 8 AND 12 INCHES. CASPER MOUNTAIN WILL RECEIVE BETWEEN 12 AND 18 INCHES WITH ISOLATED AREAS RECEIVING TWO FEET. * WIND AND VISIBILITY...NORTH TO NORTHEAST WINDS OF 15 TO 30 MPH WITH SOME GUSTS OF 35 MPH WILL CAUSE SIGNIFICANT BLOWING AND DRIFTING SNOW. NEAR WHITEOUT CONDITIONS ARE POSSIBLE IN RURAL AREAS. WINDS WILL ALSO COMBINE WITH VERY COLD TEMPERATURES TO PRODUCE WIND CHILLS OF 10 TO 20 BELOW THURSDAY. * IMPACTS...TRAVEL ACROSS NATRONA COUNTY AS WELL AS ON CASPER MOUNTAIN WILL BECOME HAZARDOUS EARLY THIS MORNING...AND REMAIN HAZARDOUS THROUGH THURSDAY NIGHT. THOSE PLANNING OUTDOOR ACTIVITIES SHOULD BE PREPARED FOR DETERIORATING WEATHER CONDITIONS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING IS ISSUED WHEN SEVERE WINTER WEATHER IS EXPECTED TO OCCUR. HEAVY SNOW IS FORECAST TO ACCUMULATE IN THE AFFECTED AREAS...CAUSING HAZARDOUS DRIVING CONDITIONS. GUSTY WIND WILL ALSO CAUSE REDUCED VISIBILITIES...AS WELL AS BLOWING AND DRIFTING SNOW. THOSE WITH TRAVEL PLANS IN THE WARNING AREA ARE ADVISED TO CONSIDER POSTPONING TRAVEL...OR SHOULD USE EXTREME CAUTION IF TRAVEL IS NECESSARY. && $$ WYZ022-302000- /O.CON.KRIW.WS.W.0021.000000T0000Z-101231T1200Z/ CASPER MOUNTAIN- 459 AM MST THU DEC 30 2010 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 AM MST FRIDAY... A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 AM MST FRIDAY. * SUMMARY AND TIMING...PERIODS OF SNOW...HEAVY AT TIMES...WILL OCCUR THROUGH TONIGHT. THE HEAVIEST SNOWFALL WITH THIS STORM IS EXPECTED THROUGH THIS AFTERNOON AND EVENING. * SNOW ACCUMULATIONS...4 INCHES OF SNOW HAS FALLEN ON CASPER MOUNTAIN. 12 AND 18 INCHES WITH ISOLATED AREAS RECEIVING TWO FEET ARE EXPECTED BY LATE TONIGHT. * WIND AND VISIBILITY...NORTH TO NORTHEAST WINDS OF 20 TO 30 MPH WITH SOME GUSTS OF 35 MPH WILL CAUSE SIGNIFICANT BLOWING AND DRIFTING SNOW...RESULTING IN NEAR WHITEOUT CONDITIONS AT TIMES. WINDS WILL ALSO COMBINE WITH VERY COLD TEMPERATURES TO PRODUCE WIND CHILLS OF 10 TO 20 BELOW THURSDAY. * IMPACTS...TRAVEL ACROSS NATRONA COUNTY AS WELL AS ON CASPER MOUNTAIN WILL BECOME HAZARDOUS EARLY THIS MORNING...AND REMAIN HAZARDOUS THROUGH TONIGHT. THOSE PLANNING OUTDOOR ACTIVITIES SHOULD BE PREPARED FOR DETERIORATING WEATHER CONDITIONS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING IS ISSUED WHEN SEVERE WINTER WEATHER IS EXPECTED TO OCCUR. HEAVY SNOW IS FORECAST TO ACCUMULATE IN THE AFFECTED AREAS...CAUSING HAZARDOUS DRIVING CONDITIONS. GUSTY WIND WILL ALSO CAUSE REDUCED VISIBILITIES...AS WELL AS BLOWING AND DRIFTING SNOW. THOSE WITH TRAVEL PLANS IN THE WARNING AREA ARE ADVISED TO CONSIDER POSTPONING TRAVEL...OR SHOULD USE EXTREME CAUTION IF TRAVEL IS NECESSARY. && $$ WYZ014-302000- /O.CON.KRIW.WW.Y.0045.000000T0000Z-101231T1200Z/ WIND RIVER MOUNTAINS WEST- 459 AM MST THU DEC 30 2010 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST FRIDAY... A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST FRIDAY. * SUMMARY AND TIMING...LIGHT SNOW...OCCASIONALLY MODERATE WILL CONTINUE ACROSS THE WESTERN SLOPES OF THE WIND RIVER MOUNTAINS...ESPECIALLY ABOVE 9000 FEET. * SNOW ACCUMULATIONS...11 INCHES OF SNOW FELL WEDNESDAY. AN ADDITIONAL 1 TO 3 INCHES IS EXPECTED DURING THE SECOND PORTION OF THIS STORM...WITH MUCH HIGHER AMOUNTS CLOSE TO THE CONTINENTAL DIVIDE BY LATE TONIGHT. * WIND AND VISIBILITY...NORTH NORTHWEST WINDS OF 15 TO 30 MPH WITH GUSTS TO 45 MPH OVER SOUTH PASS WILL SWITCH TO THE NORTHEAST AT SIMILAR SPEEDS LATER THIS MORNING. THIS WIND WILL RESULT IN CONSIDERABLE BLOWING AND DRIFTING OF SNOW ACROSS SOUTH PASS...WITH VISIBILITY NEAR ZERO AT TIMES. IN ADDITION...WIND CHILLS WILL BE 10 TO 20 BELOW ZERO THURSDAY. * IMPACTS...TRAVEL ACROSS SOUTH PASS WILL BE TREACHEROUS THROUGH TONIGHT. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW AND BLOWING SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$ WYZ005-007-302000- /O.CON.KRIW.WW.Y.0045.000000T0000Z-101231T1200Z/ SOUTHWEST BIG HORN BASIN-OWL CREEK AND BRIDGER MOUNTAINS- INCLUDING THE CITY OF...THERMOPOLIS 459 AM MST THU DEC 30 2010 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST FRIDAY... A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST FRIDAY. * SUMMARY AND TIMING...PERIODS OF SNOW...HEAVY AT TIMES...WILL OCCUR THROUGH TONIGHT. THE HEAVIEST SNOWFALL WITH THIS STORM IS EXPECTED THROUGH NOON TODAY. * SNOW ACCUMULATIONS...2 TO 3 INCHES OF SNOW HAS FALLEN ACROSS THERMOPOLIS. 3 TO 6 INCHES OF SNOW WILL ACCUMULATE IN THE LOWER ELEVATIONS OF HOT SPRINGS COUNTY. THE ADJACENT OWL CREEK AND BRIDGER MOUNTAINS WILL RECEIVE 6 TO 12 INCHES OF SNOW. * WIND AND VISIBILITY...NORTH TO NORTHEAST WINDS OF 20 TO 30 MPH WITH GUSTS OF 35 TO 45 MPH WILL CAUSE SIGNIFICANT BLOWING AND DRIFTING SNOW. THESE STRONG WINDS WILL RESULT IN CONSIDERABLE BLOWING AND DRIFTING OF SNOW...ESPECIALLY IN THE WIND RIVER CANYON. NEAR WHITEOUT CONDITIONS ARE POSSIBLE IN THE WIND RIVER CANYON. IN ADDITION...WINDS WILL COMBINE WITH COLD TEMPERATURES TO PRODUCE WIND CHILLS AROUND 10 BELOW THURSDAY. * IMPACTS...TRAVEL ACROSS HOT SPRINGS COUNTY...ESPECIALLY THROUGH THE WIND RIVER CANYON...WILL REMAIN HAZARDOUS EARLY THIS MORNING...AND REMAIN HAZARDOUS THROUGH TONIGHT. THOSE PLANNING OUTDOOR ACTIVITIES SHOULD BE PREPARED FOR DETERIORATING WEATHER CONDITIONS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW AND BLOWING SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$ WYZ006-301800- /O.CON.KRIW.WW.Y.0045.000000T0000Z-101230T1800Z/ SOUTHEAST BIG HORN BASIN- INCLUDING THE CITY OF...WORLAND 459 AM MST THU DEC 30 2010 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 AM MST THIS MORNING... A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 AM MST THIS MORNING. * SUMMARY AND TIMING...PERIODS OF SNOW...HEAVY AT TIMES...WILL OCCUR THROUGH 11 AM THIS MORNING. * SNOW ACCUMULATIONS...4 INCHES OF SNOW HAVE FALLEN IN WORLAND. A STORM TOTAL OF 5 INCHES WITH ISOLATED LOCATIONS OF 6 INCHES WILL ACCUMULATE BY 11 AM THIS MORNING. * WIND AND VISIBILITY...NORTHWEST WINDS OF 10 TO 20 MPH WILL CREATE SOME BLOWING AND DRIFTING SNOW TODAY. IN ADDITION... WINDS WILL COMBINE WITH COLD TEMPERATURES TO PRODUCE WIND CHILLS FROM 10 TO 20 BELOW ZERO THURSDAY. * IMPACTS...TRAVEL ACROSS WASHAKIE COUNTY WILL BE HAZARDOUS TODAY WITH SLICK AND SNOW PACKED ROADS AND POOR VISIBILITY. THOSE PLANNING OUTDOOR ACTIVITIES SHOULD BE PREPARED FOR DETERIORATING WEATHER CONDITIONS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW AND BLOWING SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$ WYZ010-011-302000- /O.CON.KRIW.WW.Y.0045.000000T0000Z-101231T1200Z/ NORTHEAST JOHNSON COUNTY-SOUTHEAST JOHNSON COUNTY- INCLUDING THE CITIES OF...BUFFALO...KAYCEE 459 AM MST THU DEC 30 2010 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST FRIDAY... A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST FRIDAY. * SUMMARY AND TIMING...PERIODS OF SNOW...MODERATE AT TIMES... WILL OCCUR THROUGH TONIGHT. THE HEAVIEST SNOWFALL WITH THIS STORM IS EXPECTED THROUGH NOON TODAY. * SNOW ACCUMULATIONS...3 TO 6 INCHES WILL ACCUMULATE BY EARLY FRIDAY MORNING. * WIND AND VISIBILITY...NORTH TO NORTHEAST WINDS OF 20 TO 30 MPH WITH GUSTS TO 45 MPH WILL CAUSE SIGNIFICANT BLOWING AND DRIFTING SNOW...ALONG WITH POSSIBLE WHITE OUT CONDITIONS. IN ADDITION...WINDS WILL COMBINE WITH COLD TEMPERATURES TO PRODUCE WIND CHILLS OF 15 BELOW TO 25 BELOW THURSDAY. * IMPACTS...TRAVEL ACROSS JOHNSON COUNTY...INCLUDING INTERSTATES 25 AND 90...WILL BECOME HAZARDOUS EARLY THIS MORNING. THOSE PLANNING OUTDOOR ACTIVITIES SHOULD BE PREPARED FOR DETERIORATING WEATHER CONDITIONS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW AND BLOWING SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$ WYZ017-302000- /O.CON.KRIW.WW.Y.0045.000000T0000Z-101231T1200Z/ WIND RIVER BASIN- INCLUDING THE CITIES OF...RIVERTON...SHOSHONI 459 AM MST THU DEC 30 2010 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST FRIDAY... A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST FRIDAY. * SUMMARY AND TIMING...PERIODS OF SNOW...HEAVY AT TIMES...WILL OCCUR THROUGH TONIGHT. THE HEAVIEST SNOWFALL WITH THIS STORM IS EXPECTED THROUGH NOON TODAY. * SNOW ACCUMULATIONS...3 INCHES OF SNOW HAS FALLEN IN RIVERTON ALONG WITH 2 INCHES IN FORT WASHAKIE. ACCUMULATIONS OF 2 TO 5 INCHES WILL OCCUR ALONG WITH ISOLATED AMOUNTS OF 7 INCHES BY EARLY FRIDAY MORNING. * WIND AND VISIBILITY...NORTH TO NORTHEAST WINDS OF 15 TO 25 MPH WITH SOME GUSTS OF 35 MPH WILL CAUSE SIGNIFICANT BLOWING AND DRIFTING SNOW. IN ADDITION...WINDS WILL COMBINE WITH COLD TEMPERATURES TO PRODUCE WIND CHILLS AROUND 10 BELOW ZERO TODAY. * IMPACTS...TRAVEL ACROSS THE WIND RIVER BASIN WILL BECOME HAZARDOUS EARLY THIS MORNING...AND REMAIN HAZARDOUS THROUGH THURSDAY NIGHT. THOSE PLANNING OUTDOOR ACTIVITIES SHOULD BE PREPARED FOR DETERIORATING WEATHER CONDITIONS. A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW AND BLOWING SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$ LIPSON
759 WWUS45 KRIW 301622 WSWRIW URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE RIVERTON WY 922 AM MST THU DEC 30 2010 ...SIGNIFICANT SNOWFALL HAS SHIFTED EAST OF THE DIVIDE AND WILL CONTINUE TODAY THROUGH EARLY FRIDAY MORNING... .A PACIFIC STORM SYSTEM MOVING EAST ACROSS THE ROCKIES...AND AN ARCTIC COLD FRONT PUSHING SOUTH WILL COMBINE FOR SIGNIFICANT SNOWFALL EAST OF THE DIVIDE AND SWEETWATER COUNTY THROUGH EARLY FRIDAY MORNING. WINDY CONDITIONS WILL RESULT IN CONSIDERABLE BLOWING AND DRIFTING SNOW...AS WELL AS NEAR WHITEOUT CONDITIONS IN SOME AREAS. FRIGID AIR WILL BE IN PLACE IN THE WAKE OF THE ARCTIC COLD FRONT...WITH WIND CHILL READINGS 10 TO 30 BELOW ZERO TODAY AND TONIGHT. WYZ015-018-302315- /O.CON.KRIW.WS.W.0021.000000T0000Z-101231T1200Z/ WIND RIVER MOUNTAINS EAST-LANDER FOOTHILLS- INCLUDING THE CITY OF...LANDER 922 AM MST THU DEC 30 2010 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 AM MST FRIDAY... A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 AM MST FRIDAY. * SUMMARY AND TIMING...PERIODS OF SNOW...HEAVY AT TIMES WILL OCCUR THROUGH EARLY FRIDAY MORNING. THE HEAVIEST SNOWFALL WITH THIS STORM IS EXPECTED THIS AFTERNOON AND EVENING. * SNOW ACCUMULATIONS...11 INCHES OF SNOW HAS FALLEN ON THE EAST SLOPES OF THE WIND RIVER MOUNTAINS WITH AROUND 9 INCHES OF IT HAVING FALLEN WEDNESDAY AND 2 INCHES INCHES OF IT EARLY THIS MORNING. 8 TO 12 INCHES OF SNOWFALL IN LANDER... WITH 12 TO 16 INCHES NEAR SINKS CANYON ARE EXPECTED BY LATE TONIGHT. THE EASTERN SLOPES OF THE WIND RIVER MOUNTAINS WILL SEE 12 TO 24 INCHES OF NEW SNOW. * WIND AND VISIBILITY...NORTH TO NORTHEAST WINDS OF 10 TO 20 MPH WITH GUSTS TO 30 MPH WILL CAUSE SIGNIFICANT BLOWING AND DRIFTING SNOW...ESPECIALLY SOUTHEAST OF LANDER TOWARDS BEAVER RIM AND SOUTH PASS. IN ADDITION...WINDS WILL COMBINE WITH TEMPERATURES AROUND ZERO DEGREES TO PRODUCE WIND CHILLS AROUND 15 BELOW BY TONIGHT. * IMPACTS...TRAVEL ACROSS THE WIND RIVER BASIN AND SOUTH PASS WILL REMAIN HAZARDOUS THROUGH EARLY FRIDAY MORNING. THOSE PLANNING OUTDOOR ACTIVITIES SHOULD BE PREPARED FOR DETERIORATING WEATHER CONDITIONS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED OR OCCURRING. SIGNIFICANT AMOUNTS OF SNOW ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN AN EMERGENCY. IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT... FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY. && $$ WYZ020-302315- /O.CON.KRIW.WS.W.0021.000000T0000Z-101231T1200Z/ NATRONA COUNTY LOWER ELEVATIONS- INCLUDING THE CITY OF...CASPER 922 AM MST THU DEC 30 2010 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 AM MST FRIDAY... A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 AM MST FRIDAY. * SUMMARY AND TIMING...PERIODS OF SNOW...HEAVY AT TIMES...WILL OCCUR THROUGH EARLY FRIDAY MORNING. THE HEAVIEST SNOWFALL WITH THIS STORM IS EXPECTED THROUGH THIS AFTERNOON AND EVENING. * SNOW ACCUMULATIONS...3 TO 7 INCHES OF SNOW HAS FALLEN OVER THE CASPER AREA ALONG WITH AT LEAST 4 INCHES REPORTED ON CASPER MOUNTAIN EARLY THIS MORNING. 4 TO 8 INCHES OF SNOWFALL WILL ACCUMULATE ACROSS MUCH OF NATRONA COUNTY THROUGH EARLY FRIDAY MORNING. SOUTHERN CASPER AND AREAS NEAR CASPER MOUNTAIN COULD SEE SNOWFALL AMOUNTS BETWEEN 8 AND 12 INCHES. CASPER MOUNTAIN WILL RECEIVE BETWEEN 12 AND 18 INCHES WITH ISOLATED AREAS RECEIVING TWO FEET. * WIND AND VISIBILITY...NORTH TO NORTHEAST WINDS OF 15 TO 30 MPH WITH SOME GUSTS OF 35 MPH WILL CAUSE SIGNIFICANT BLOWING AND DRIFTING SNOW. NEAR WHITEOUT CONDITIONS ARE POSSIBLE IN RURAL AREAS. WINDS WILL ALSO COMBINE WITH VERY COLD TEMPERATURES TO PRODUCE WIND CHILLS OF 10 TO 20 BELOW THURSDAY. * IMPACTS...TRAVEL ACROSS NATRONA COUNTY AS WELL AS ON CASPER MOUNTAIN WILL REMAIN HAZARDOUS THROUGH THURSDAY NIGHT. THOSE PLANNING OUTDOOR ACTIVITIES SHOULD BE PREPARED FOR DETERIORATING WEATHER CONDITIONS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING IS ISSUED WHEN SEVERE WINTER WEATHER IS EXPECTED TO OCCUR. HEAVY SNOW IS FORECAST TO ACCUMULATE IN THE AFFECTED AREAS...CAUSING HAZARDOUS DRIVING CONDITIONS. GUSTY WIND WILL ALSO CAUSE REDUCED VISIBILITIES...AS WELL AS BLOWING AND DRIFTING SNOW. THOSE WITH TRAVEL PLANS IN THE WARNING AREA ARE ADVISED TO CONSIDER POSTPONING TRAVEL...OR SHOULD USE EXTREME CAUTION IF TRAVEL IS NECESSARY. && $$ WYZ022-302315- /O.CON.KRIW.WS.W.0021.000000T0000Z-101231T1200Z/ CASPER MOUNTAIN- 922 AM MST THU DEC 30 2010 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 AM MST FRIDAY... A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 AM MST FRIDAY. * SUMMARY AND TIMING...PERIODS OF SNOW...HEAVY AT TIMES...WILL OCCUR THROUGH EARLY FRIDAY MORNING. THE HEAVIEST SNOWFALL WITH THIS STORM IS EXPECTED THROUGH THIS AFTERNOON AND EVENING. * SNOW ACCUMULATIONS...AT LEAST 4 INCHES OF SNOW HAS FALLEN ON CASPER MOUNTAIN AS OF EARLY THIS MORNING. 12 AND 18 INCHES WITH ISOLATED AREAS RECEIVING TWO FEET ARE EXPECTED BY LATE TONIGHT. * WIND AND VISIBILITY...NORTH TO NORTHEAST WINDS OF 20 TO 30 MPH WITH SOME GUSTS OF 35 MPH WILL CAUSE SIGNIFICANT BLOWING AND DRIFTING SNOW...RESULTING IN NEAR WHITEOUT CONDITIONS AT TIMES. WINDS WILL ALSO COMBINE WITH VERY COLD TEMPERATURES TO PRODUCE WIND CHILLS OF 15 TO 25 BELOW THURSDAY. * IMPACTS...TRAVEL ACROSS NATRONA COUNTY AS WELL AS ON CASPER MOUNTAIN WILL REMAIN HAZARDOUS THROUGH EARLY FRIDAY MORNING. THOSE PLANNING OUTDOOR ACTIVITIES SHOULD BE PREPARED FOR DETERIORATING WEATHER CONDITIONS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING IS ISSUED WHEN SEVERE WINTER WEATHER IS EXPECTED TO OCCUR. HEAVY SNOW IS FORECAST TO ACCUMULATE IN THE AFFECTED AREAS...CAUSING HAZARDOUS DRIVING CONDITIONS. GUSTY WIND WILL ALSO CAUSE REDUCED VISIBILITIES...AS WELL AS BLOWING AND DRIFTING SNOW. THOSE WITH TRAVEL PLANS IN THE WARNING AREA ARE ADVISED TO CONSIDER POSTPONING TRAVEL...OR SHOULD USE EXTREME CAUTION IF TRAVEL IS NECESSARY. && $$ WYZ019-302315- /O.CON.KRIW.WS.W.0021.000000T0000Z-101231T1200Z/ GREEN MOUNTAINS AND RATTLESNAKE RANGE- INCLUDING THE CITY OF...JEFFREY CITY 922 AM MST THU DEC 30 2010 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 AM MST FRIDAY... A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 AM MST FRIDAY. * SUMMARY AND TIMING...PERIODS OF SNOW...HEAVY AT TIMES...WILL OCCUR THROUGH EARLY FRIDAY MORNING. THE HEAVIEST SNOWFALL WITH THIS STORM IS EXPECTED THROUGH THIS AFTERNOON. * SNOW ACCUMULATIONS...3 TO 6 INCHES WILL ACCUMULATE BY EARLY FRIDAY MORNING...WITH ISOLATED HIGHER AMOUNTS NEAR 8 INCHES. * WIND AND VISIBILITY...NORTH TO NORTHEAST WINDS OF 15 TO 25 MPH WITH SOME GUSTS TO 45 MPH WILL CAUSE SIGNIFICANT BLOWING AND DRIFTING SNOW...ALONG WITH POSSIBLE WHITE OUT CONDITIONS. IN ADDITION... WINDS WILL COMBINE WITH COLD TEMPERATURES TO PRODUCE WIND CHILLS OF 10 BELOW TO 20 BELOW ZERO THURSDAY. * IMPACTS...TRAVEL ACROSS THE GREEN MOUNTAINS...INCLUDING HIGHWAY 287 THROUGH SWEETWATER STATION AND JEFFREY CITY...WILL REMAIN HAZARDOUS THROUGH EARLY FRIDAY MORNING. THOSE PLANNING OUTDOOR ACTIVITIES SHOULD BE PREPARED FOR DETERIORATING WEATHER CONDITIONS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED OR OCCURRING. SIGNIFICANT AMOUNTS OF SNOW ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN AN EMERGENCY. IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT... FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY. && $$ WYZ028>030-302315- /O.CON.KRIW.WS.W.0021.000000T0000Z-101231T1200Z/ ROCK SPRINGS AND GREEN RIVER-FLAMING GORGE-EAST SWEETWATER COUNTY- INCLUDING THE CITIES OF...ROCK SPRINGS...GREEN RIVER...WAMSUTTER 922 AM MST THU DEC 30 2010 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 AM MST FRIDAY... A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 AM MST FRIDAY. * SUMMARY AND TIMING...PERIODS OF SNOW WILL CONTINUE THIS MORNING...BECOMING HEAVY AT TIMES LATER THIS MORNING...AND WILL CONTINUE THIS AFTERNOON THROUGH EARLY FRIDAY MORNING. THE HEAVIEST SNOWFALL WITH THIS STORM IS EXPECTED THROUGH THIS AFTERNOON. * SNOW ACCUMULATIONS...2 INCHES OF SNOW HAS FALLEN IN ROCK SPRINGS SO FAR. 3 TO 6 INCHES WILL ACCUMULATE BY EARLY FRIDAY MORNING. * WIND AND VISIBILITY...WEST WINDS OF 20 TO 30 MPH WITH GUSTS TO 45 MPH TONIGHT...WITH SHIFT TO THE NORTHEAST 20 TO 30 MPH LATER THIS MORNING AS THE ARCTIC COLD FRONT MOVES ACROSS SWEETWATER COUNTY. THESE WINDS WILL CREATE CONSIDERABLE BLOWING AND DRIFTING SNOW THROUGH EARLY FRIDAY MORNING ALONG WITH WHITE OUT CONDITIONS. IN ADDITION...WINDS WILL COMBINE WITH COLD TEMPERATURES TO PRODUCE WIND CHILLS FROM ZERO TO 20 BELOW ZERO THURSDAY. * IMPACTS...TRAVEL ACROSS SWEETWATER COUNTY...INCLUDING INTERSTATE 80...WILL REMAIN HAZARDOUS THROUGH EARLY FRIDAY MORNING. THOSE PLANNING OUTDOOR ACTIVITIES SHOULD BE PREPARED FOR DETERIORATING WEATHER CONDITIONS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED OR OCCURRING. SIGNIFICANT AMOUNTS OF SNOW ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN AN EMERGENCY. IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT... FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY. && $$ WYZ004-302315- /O.EXA.KRIW.WW.Y.0045.000000T0000Z-101231T1200Z/ NORTH BIG HORN BASIN- INCLUDING THE CITIES OF...POWELL...LOVELL...GREYBULL...BASIN 922 AM MST THU DEC 30 2010 ...WINTER WEATHER ADVISORY IN EFFECT UNTIL 5 AM MST FRIDAY... THE NATIONAL WEATHER SERVICE IN RIVERTON HAS ISSUED A WINTER WEATHER ADVISORY FOR SNOW AND BLOWING SNOW...WHICH IS IN EFFECT UNTIL 5 AM MST FRIDAY. * SUMMARY AND TIMING...PERIODS OF SNOW...HEAVY AT TIMES...WILL OCCUR THROUGH EARLY FRIDAY MORNING. THE HEAVIEST SNOWFALL WITH THIS STORM IS EXPECTED THROUGH NOON TODAY. * SNOW ACCUMULATIONS...1 TO 3 INCHES OF SNOW HAS FALLEN ACROSS THE AREA. AN ADDITIONAL 1 TO 3 INCHES IS EXPECTED THROUGH EARLY FRIDAY MORNING. * WIND AND VISIBILITY...NORTH TO NORTHEAST WINDS OF 10 TO 20 MPH WITH GUSTS TO 35 MPH WILL CAUSE SIGNIFICANT BLOWING AND DRIFTING SNOW. IN ADDITION...WINDS WILL COMBINE WITH COLD TEMPERATURES TO PRODUCE WIND CHILLS OF 15 TO 25 BELOW TONIGHT. * IMPACTS...TRAVEL ACROSS THE AREA WILL REMAIN HAZARDOUS THROUGH TONIGHT. THOSE PLANNING OUTDOOR ACTIVITIES SHOULD BE PREPARED FOR DETERIORATING WEATHER CONDITIONS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW AND BLOWING SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$ WYZ003-302315- /O.EXA.KRIW.WW.Y.0045.000000T0000Z-101231T1200Z/ CODY FOOTHILLS- INCLUDING THE CITIES OF...CODY...MEETEETSE 922 AM MST THU DEC 30 2010 ...WINTER WEATHER ADVISORY IN EFFECT UNTIL 5 AM MST FRIDAY... THE NATIONAL WEATHER SERVICE IN RIVERTON HAS ISSUED A WINTER WEATHER ADVISORY FOR HEAVY SNOW AND BLOWING SNOW...WHICH IS IN EFFECT UNTIL 5 AM MST FRIDAY. * SUMMARY AND TIMING...PERIODS OF SNOW...HEAVY AT TIMES...WILL OCCUR THROUGH EARLY FRIDAY MORNING. THE HEAVIEST SNOWFALL WITH THIS STORM IS EXPECTED THROUGH NOON TODAY. * SNOW ACCUMULATIONS...2 TO 3 INCHES OF SNOW HAS FALLEN ACROSS THE AREA. AN ADDITIONAL 1 TO 3 INCHES OF SNOW WILL ACCUMULATE THROUGH EARLY FRIDAY MORNING. * WIND AND VISIBILITY...NORTH TO NORTHEAST WINDS OF 15 TO 25 MPH WITH GUSTS TO 30 MPH WILL CAUSE SIGNIFICANT BLOWING AND DRIFTING SNOW. IN ADDITION...WINDS WILL COMBINE WITH COLD TEMPERATURES TO PRODUCE WIND CHILLS OF 15 TO 25 BELOW BY TONIGHT. * IMPACTS...TRAVEL ACROSS THE AREA WILL REMAIN HAZARDOUS THROUGH TONIGHT. THOSE PLANNING OUTDOOR ACTIVITIES SHOULD BE PREPARED FOR DETERIORATING WEATHER CONDITIONS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW AND BLOWING SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$ WYZ006-302315- /O.EXT.KRIW.WW.Y.0045.000000T0000Z-101231T1200Z/ SOUTHEAST BIG HORN BASIN- INCLUDING THE CITY OF...WORLAND 922 AM MST THU DEC 30 2010 ...WINTER WEATHER ADVISORY NOW IN EFFECT UNTIL 5 AM MST FRIDAY... THE WINTER WEATHER ADVISORY IS NOW IN EFFECT UNTIL 5 AM MST FRIDAY. * SUMMARY AND TIMING...PERIODS OF SNOW...HEAVY AT TIMES...WILL OCCUR THROUGH EARLY FRIDAY MORNING. * SNOW ACCUMULATIONS...4 INCHES OF SNOW HAVE FALLEN IN WORLAND. A STORM TOTAL OF 3 TO 6 INCHES ACROSS THE BIG HORN BASIN WILL ACCUMULATE BY EARLY FRIDAY MORNING. * WIND AND VISIBILITY...NORTHWEST WINDS OF 10 TO 20 MPH WILL CREATE SOME BLOWING AND DRIFTING SNOW TODAY. IN ADDITION... WINDS WILL COMBINE WITH COLD TEMPERATURES TO PRODUCE WIND CHILLS FROM 15 TO 25 BELOW ZERO THURSDAY. * IMPACTS...TRAVEL ACROSS WASHAKIE COUNTY WILL BE HAZARDOUS TODAY WITH SLICK AND SNOW PACKED ROADS AND POOR VISIBILITY. THOSE PLANNING OUTDOOR ACTIVITIES SHOULD BE PREPARED FOR DETERIORATING WEATHER CONDITIONS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW AND BLOWING SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$ WYZ014-302315- /O.CON.KRIW.WW.Y.0045.000000T0000Z-101231T1200Z/ WIND RIVER MOUNTAINS WEST- 922 AM MST THU DEC 30 2010 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST FRIDAY... A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST FRIDAY. * SUMMARY AND TIMING...LIGHT SNOW...OCCASIONALLY MODERATE WILL CONTINUE ACROSS THE WESTERN SLOPES OF THE WIND RIVER MOUNTAINS...WITH THE HIGHEST AMOUNTS EXPECTED ABOVE 9000 FEET. * SNOW ACCUMULATIONS...11 INCHES OF SNOW FELL WEDNESDAY. AN ADDITIONAL 1 TO 3 INCHES IS EXPECTED DURING THE SECOND PORTION OF THIS STORM...WITH MUCH HIGHER AMOUNTS CLOSE TO THE CONTINENTAL DIVIDE BY LATE TONIGHT. * WIND AND VISIBILITY...NORTH NORTHWEST WINDS OF 15 TO 30 MPH WITH GUSTS TO 45 MPH OVER SOUTH PASS WILL SWITCH TO THE NORTHEAST AT SIMILAR SPEEDS LATER THIS MORNING. THIS WIND WILL RESULT IN CONSIDERABLE BLOWING AND DRIFTING OF SNOW ACROSS SOUTH PASS...WITH VISIBILITY NEAR ZERO AT TIMES. IN ADDITION... WIND CHILLS WILL BE 10 TO 20 BELOW ZERO THURSDAY. * IMPACTS...TRAVEL ACROSS SOUTH PASS WILL BE TREACHEROUS THROUGH TONIGHT. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW AND BLOWING SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$ WYZ005-007-302315- /O.CON.KRIW.WW.Y.0045.000000T0000Z-101231T1200Z/ SOUTHWEST BIG HORN BASIN-OWL CREEK AND BRIDGER MOUNTAINS- INCLUDING THE CITY OF...THERMOPOLIS 922 AM MST THU DEC 30 2010 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST FRIDAY... A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST FRIDAY. * SUMMARY AND TIMING...PERIODS OF SNOW...HEAVY AT TIMES...WILL OCCUR THROUGH EARLY FRIDAY MORNING. THE HEAVIEST SNOWFALL WITH THIS STORM IS EXPECTED THROUGH NOON TODAY. * SNOW ACCUMULATIONS...2 TO 3 INCHES OF SNOW HAS FALLEN ACROSS THERMOPOLIS. 3 TO 6 INCHES OF SNOW WILL ACCUMULATE IN THE LOWER ELEVATIONS OF HOT SPRINGS COUNTY. THE ADJACENT OWL CREEK AND BRIDGER MOUNTAINS WILL RECEIVE 6 TO 12 INCHES OF SNOW. * WIND AND VISIBILITY...NORTH TO NORTHEAST WINDS OF 20 TO 30 MPH WITH GUSTS OF 35 TO 45 MPH WILL CAUSE SIGNIFICANT BLOWING AND DRIFTING SNOW. THESE STRONG WINDS WILL RESULT IN CONSIDERABLE BLOWING AND DRIFTING OF SNOW...ESPECIALLY IN THE WIND RIVER CANYON. NEAR WHITEOUT CONDITIONS ARE POSSIBLE IN THE WIND RIVER CANYON. IN ADDITION...WINDS WILL COMBINE WITH COLD TEMPERATURES TO PRODUCE WIND CHILLS AROUND 10 BELOW THURSDAY. * IMPACTS...TRAVEL ACROSS HOT SPRINGS COUNTY...ESPECIALLY THROUGH THE WIND RIVER CANYON WILL REMAIN HAZARDOUS THROUGH EARLY FRIDAY MORNING. THOSE PLANNING OUTDOOR ACTIVITIES SHOULD BE PREPARED FOR DETERIORATING WEATHER CONDITIONS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW AND BLOWING SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$ WYZ010-011-302315- /O.CON.KRIW.WW.Y.0045.000000T0000Z-101231T1200Z/ NORTHEAST JOHNSON COUNTY-SOUTHEAST JOHNSON COUNTY- INCLUDING THE CITIES OF...BUFFALO...KAYCEE 922 AM MST THU DEC 30 2010 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST FRIDAY... A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST FRIDAY. * SUMMARY AND TIMING...PERIODS OF SNOW...MODERATE AT TIMES... WILL OCCUR THROUGH EARLY FRIDAY MORNING. THE HEAVIEST SNOWFALL WITH THIS STORM IS EXPECTED THROUGH NOON TODAY. * SNOW ACCUMULATIONS...3 TO 6 INCHES WILL ACCUMULATE BY EARLY FRIDAY MORNING. * WIND AND VISIBILITY...NORTH TO NORTHEAST WINDS OF 20 TO 30 MPH WITH GUSTS TO 45 MPH WILL CAUSE SIGNIFICANT BLOWING AND DRIFTING SNOW...ALONG WITH POSSIBLE WHITE OUT CONDITIONS. IN ADDITION...WINDS WILL COMBINE WITH COLD TEMPERATURES TO PRODUCE WIND CHILLS OF 15 BELOW TO 25 BELOW THURSDAY. * IMPACTS...TRAVEL ACROSS JOHNSON COUNTY...INCLUDING INTERSTATES 25 AND 90...WILL REMAIN HAZARDOUS THROUGH EARLY FRIDAY MORNING. THOSE PLANNING OUTDOOR ACTIVITIES SHOULD BE PREPARED FOR DETERIORATING WEATHER CONDITIONS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW AND BLOWING SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$ WYZ017-302315- /O.CON.KRIW.WW.Y.0045.000000T0000Z-101231T1200Z/ WIND RIVER BASIN- INCLUDING THE CITIES OF...RIVERTON...SHOSHONI 922 AM MST THU DEC 30 2010 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST FRIDAY... A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST FRIDAY. * SUMMARY AND TIMING...PERIODS OF SNOW...HEAVY AT TIMES...WILL OCCUR THROUGH EARLY FRIDAY MORNING. THE HEAVIEST SNOWFALL WITH THIS STORM IS EXPECTED THROUGH NOON TODAY. * SNOW ACCUMULATIONS...3 TO 5 INCHES OF SNOW HAS FALLEN IN RIVERTON. ACCUMULATIONS OF 2 TO 7 INCHES WILL OCCUR ACROSS THE WIND RIVER BASIN BY EARLY FRIDAY MORNING. * WIND AND VISIBILITY...NORTH TO NORTHEAST WINDS OF 15 TO 25 MPH WITH SOME GUSTS OF 35 MPH WILL CAUSE SIGNIFICANT BLOWING AND DRIFTING SNOW. IN ADDITION...WINDS WILL COMBINE WITH COLD TEMPERATURES TO PRODUCE WIND CHILLS OF 15 TO 25 BELOW ZERO BY TONIGHT. * IMPACTS...TRAVEL ACROSS THE WIND RIVER BASIN WILL REMAIN HAZARDOUS THROUGH THURSDAY NIGHT. THOSE PLANNING OUTDOOR ACTIVITIES SHOULD BE PREPARED FOR DETERIORATING WEATHER CONDITIONS. A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW AND BLOWING SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$
549 WWUS45 KRIW 302148 WSWRIW URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE RIVERTON WY 248 PM MST THU DEC 30 2010 ...SIGNIFICANT SNOWFALL HAS SHIFTED EAST OF THE DIVIDE AND WILL CONTINUE THROUGH EARLY FRIDAY MORNING... .A PACIFIC STORM SYSTEM MOVING EAST ACROSS THE ROCKIES...AND AN ARCTIC COLD FRONT PUSHING SOUTH WILL COMBINE FOR SIGNIFICANT SNOWFALL EAST OF THE DIVIDE AND SWEETWATER COUNTY THROUGH EARLY FRIDAY MORNING. WINDY CONDITIONS WILL RESULT IN CONSIDERABLE BLOWING AND DRIFTING SNOW...AS WELL AS NEAR WHITEOUT CONDITIONS IN SOME AREAS. FRIGID AIR WILL BE IN PLACE IN THE WAKE OF THE ARCTIC COLD FRONT...WITH WIND CHILL READINGS 10 BELOW TO 30 BELOW ZERO TONIGHT. WYZ015-018-310700- /O.CON.KRIW.WS.W.0021.000000T0000Z-101231T1200Z/ WIND RIVER MOUNTAINS EAST-LANDER FOOTHILLS- INCLUDING THE CITY OF...LANDER 248 PM MST THU DEC 30 2010 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 AM MST FRIDAY... A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 AM MST FRIDAY. * SUMMARY AND TIMING...PERIODS OF SNOW...HEAVY AT TIMES WILL OCCUR THROUGH EARLY FRIDAY MORNING. THE HEAVIEST SNOWFALL WITH THIS STORM IS EXPECTED THROUGH THIS EVENING AS FLOW SHIFTS TO NORTHERLY AND AIDS OROGRAPHIC LIFT. * SNOW ACCUMULATIONS...8 TO 12 INCHES OF SNOW HAS FALLEN ON THE EAST SLOPES OF THE WIND RIVER MOUNTAINS WITH AROUND 6 INCHES OF SNOWFALL IN LANDER. ANOTHER 2 TO 5 INCHES OF ADDITIONAL ACCUMULATION IS POSSIBLE BEFORE FRIDAY MORNING. * WIND AND VISIBILITY...NORTH TO NORTHEAST WINDS OF 10 TO 20 MPH WITH GUSTS TO 30 MPH WILL CAUSE SIGNIFICANT BLOWING AND DRIFTING SNOW...ESPECIALLY SOUTHEAST OF LANDER TOWARDS BEAVER RIM AND SOUTH PASS. IN ADDITION...WINDS WILL COMBINE WITH TEMPERATURES AROUND ZERO DEGREES TO PRODUCE WIND CHILLS AROUND 15 BELOW BY FRIDAY MORNING. * IMPACTS...TRAVEL ACROSS THE WIND RIVER BASIN AND SOUTH PASS WILL REMAIN HAZARDOUS THROUGH EARLY FRIDAY MORNING. THOSE PLANNING OUTDOOR ACTIVITIES SHOULD BE PREPARED FOR DETERIORATING WEATHER CONDITIONS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED OR OCCURRING. SIGNIFICANT AMOUNTS OF SNOW ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN AN EMERGENCY. IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT... FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY. && $$ WYZ020-310700- /O.CON.KRIW.WS.W.0021.000000T0000Z-101231T1200Z/ NATRONA COUNTY LOWER ELEVATIONS- INCLUDING THE CITY OF...CASPER 248 PM MST THU DEC 30 2010 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 AM MST FRIDAY... A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 AM MST FRIDAY. * SUMMARY AND TIMING...PERIODS OF SNOW...HEAVY AT TIMES...WILL OCCUR THROUGH EARLY FRIDAY MORNING. THE HEAVIEST SNOWFALL WITH THIS STORM IS EXPECTED THROUGH THIS EVENING. * SNOW ACCUMULATIONS...3 TO 7 INCHES OF SNOW HAS FALLEN OVER THE CASPER AREA ALONG WITH AT LEAST 6 INCHES REPORTED ON CASPER MOUNTAIN THIS MORNING. SOUTHERN CASPER AND AREAS NEAR CASPER MOUNTAIN COULD SEE ADDITIONAL SNOWFALL AMOUNTS BETWEEN 3 AND 7 INCHES FOR A STORM TOTAL OF 6 TO 12 INCHES AROUND CASPER. A STORM TOTAL OF 4 TO 8 INCHES OF SNOWFALL IS EXPECTED ACROSS THE REST OF NATRONA COUNTY THROUGH EARLY FRIDAY MORNING. * WIND AND VISIBILITY...NORTH TO NORTHEAST WINDS OF 15 TO 30 MPH WITH SOME GUSTS OF 35 MPH WILL CAUSE SIGNIFICANT BLOWING AND DRIFTING SNOW. NEAR WHITEOUT CONDITIONS ARE POSSIBLE IN RURAL AREAS. WINDS WILL ALSO COMBINE WITH VERY COLD TEMPERATURES TO PRODUCE WIND CHILLS OF 10 BELOW TO 20 BELOW THURSDAY. * IMPACTS...TRAVEL ACROSS NATRONA COUNTY AS WELL AS ON CASPER MOUNTAIN WILL REMAIN HAZARDOUS THROUGH EARLY FRIDAY MORNING. THOSE PLANNING OUTDOOR ACTIVITIES SHOULD BE PREPARED FOR DETERIORATING WEATHER CONDITIONS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING IS ISSUED WHEN SEVERE WINTER WEATHER IS EXPECTED TO OCCUR. HEAVY SNOW IS FORECAST TO ACCUMULATE IN THE AFFECTED AREAS...CAUSING HAZARDOUS DRIVING CONDITIONS. GUSTY WIND WILL ALSO CAUSE REDUCED VISIBILITIES...AS WELL AS BLOWING AND DRIFTING SNOW. THOSE WITH TRAVEL PLANS IN THE WARNING AREA ARE ADVISED TO CONSIDER POSTPONING TRAVEL...OR SHOULD USE EXTREME CAUTION IF TRAVEL IS NECESSARY. && $$ WYZ022-310700- /O.CON.KRIW.WS.W.0021.000000T0000Z-101231T1200Z/ CASPER MOUNTAIN- 248 PM MST THU DEC 30 2010 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 AM MST FRIDAY... A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 AM MST FRIDAY. * SUMMARY AND TIMING...PERIODS OF SNOW...HEAVY AT TIMES...WILL OCCUR THROUGH EARLY FRIDAY MORNING. THE HEAVIEST SNOWFALL WITH THIS STORM IS EXPECTED THROUGH THIS EVENING. * SNOW ACCUMULATIONS...AT LEAST 6 INCHES OF SNOW HAS FALLEN ON CASPER MOUNTAIN AS OF EARLY THIS MORNING. 12 TO 18 INCHES WITH ISOLATED AREAS RECEIVING TWO FEET ARE EXPECTED BY FRIDAY MORNING. * WIND AND VISIBILITY...NORTH TO NORTHEAST WINDS OF 20 TO 30 MPH WITH SOME GUSTS OF 35 MPH WILL CAUSE SIGNIFICANT BLOWING AND DRIFTING SNOW...RESULTING IN NEAR WHITEOUT CONDITIONS AT TIMES. WINDS WILL ALSO COMBINE WITH VERY COLD TEMPERATURES TO PRODUCE WIND CHILLS OF 15 BELOW TO 25 BELOW OVERNIGHT. * IMPACTS...TRAVEL ACROSS NATRONA COUNTY AS WELL AS ON CASPER MOUNTAIN WILL REMAIN HAZARDOUS THROUGH EARLY FRIDAY MORNING. THOSE PLANNING OUTDOOR ACTIVITIES SHOULD BE PREPARED FOR DETERIORATING WEATHER CONDITIONS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING IS ISSUED WHEN SEVERE WINTER WEATHER IS EXPECTED TO OCCUR. HEAVY SNOW IS FORECAST TO ACCUMULATE IN THE AFFECTED AREAS...CAUSING HAZARDOUS DRIVING CONDITIONS. GUSTY WIND WILL ALSO CAUSE REDUCED VISIBILITIES...AS WELL AS BLOWING AND DRIFTING SNOW. THOSE WITH TRAVEL PLANS IN THE WARNING AREA ARE ADVISED TO CONSIDER POSTPONING TRAVEL...OR SHOULD USE EXTREME CAUTION IF TRAVEL IS NECESSARY. && $$ WYZ019-310700- /O.CON.KRIW.WS.W.0021.000000T0000Z-101231T1200Z/ GREEN MOUNTAINS AND RATTLESNAKE RANGE- INCLUDING THE CITY OF...JEFFREY CITY 248 PM MST THU DEC 30 2010 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 AM MST FRIDAY... A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 AM MST FRIDAY. * SUMMARY AND TIMING...PERIODS OF SNOW...HEAVY AT TIMES...WILL OCCUR THROUGH EARLY FRIDAY MORNING. * SNOW ACCUMULATIONS...3 TO 6 INCHES WILL ACCUMULATE BY EARLY FRIDAY MORNING...WITH ISOLATED HIGHER AMOUNTS NEAR 8 INCHES. * WIND AND VISIBILITY...NORTH TO NORTHEAST WINDS OF 15 TO 25 MPH WITH SOME GUSTS TO 45 MPH WILL CAUSE SIGNIFICANT BLOWING AND DRIFTING SNOW...ALONG WITH POSSIBLE WHITE OUT CONDITIONS. IN ADDITION... WINDS WILL COMBINE WITH COLD TEMPERATURES TO PRODUCE WIND CHILLS OF 15 BELOW TO 25 BELOW ZERO OVERNIGHT. * IMPACTS...TRAVEL ACROSS THE GREEN MOUNTAINS...INCLUDING HIGHWAY 287 THROUGH SWEETWATER STATION AND JEFFREY CITY...WILL REMAIN HAZARDOUS THROUGH EARLY FRIDAY MORNING. THOSE PLANNING OUTDOOR ACTIVITIES SHOULD BE PREPARED FOR DETERIORATING WEATHER CONDITIONS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED OR OCCURRING. SIGNIFICANT AMOUNTS OF SNOW ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN AN EMERGENCY. IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT... FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY. && $$ WYZ028>030-310700- /O.CON.KRIW.WS.W.0021.000000T0000Z-101231T1200Z/ ROCK SPRINGS AND GREEN RIVER-FLAMING GORGE-EAST SWEETWATER COUNTY- INCLUDING THE CITIES OF...ROCK SPRINGS...GREEN RIVER...WAMSUTTER 248 PM MST THU DEC 30 2010 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 AM MST FRIDAY... A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 AM MST FRIDAY. * SUMMARY AND TIMING...PERIODS OF SNOW WILL CONTINUE THROUGH EARLY FRIDAY MORNING. * SNOW ACCUMULATIONS...1 TO 3 INCHES OF SNOW HAS FALLEN IN ROCK SPRINGS SO FAR. AROUND 5 INCHES HAS BEEN REPORTED AROUND GREEN RIVER. A STORM TOTAL OF 3 TO 7 INCHES WILL ACCUMULATE BY EARLY FRIDAY MORNING. * WIND AND VISIBILITY...NORTHEAST WINDS OF 20 TO 30 MPH WILL CREATE CONSIDERABLE BLOWING AND DRIFTING SNOW THROUGH EARLY FRIDAY MORNING ALONG WITH WHITE OUT CONDITIONS. IN ADDITION ...WINDS WILL COMBINE WITH COLD TEMPERATURES TO PRODUCE WIND CHILLS FROM ZERO TO 20 BELOW ZERO THURSDAY. * IMPACTS...TRAVEL ACROSS SWEETWATER COUNTY...INCLUDING INTERSTATE 80...WILL REMAIN HAZARDOUS IF NOT IMPOSSIBLE THROUGH EARLY FRIDAY MORNING. THOSE PLANNING OUTDOOR ACTIVITIES SHOULD BE PREPARED FOR DETERIORATING WEATHER CONDITIONS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED OR OCCURRING. SIGNIFICANT AMOUNTS OF SNOW ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN AN EMERGENCY. IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT... FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY. && $$ WYZ014-310700- /O.CON.KRIW.WW.Y.0045.000000T0000Z-101231T1200Z/ WIND RIVER MOUNTAINS WEST- 248 PM MST THU DEC 30 2010 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST FRIDAY... A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST FRIDAY. * SUMMARY AND TIMING...LIGHT SNOW...OCCASIONALLY MODERATE WILL CONTINUE ACROSS THE WESTERN SLOPES OF THE WIND RIVER MOUNTAINS...WITH THE HIGHEST AMOUNTS EXPECTED ABOVE 9000 FEET. * SNOW ACCUMULATIONS...11 INCHES OF SNOW FELL WEDNESDAY. AN ADDITIONAL 1 TO 3 INCHES IS EXPECTED DURING THE SECOND PORTION OF THIS STORM...WITH MUCH HIGHER AMOUNTS CLOSE TO THE CONTINENTAL DIVIDE BY LATE TONIGHT. * WIND AND VISIBILITY...NORTH NORTHWEST WINDS OF 15 TO 30 MPH WITH GUSTS TO 45 MPH OVER SOUTH PASS WILL SWITCH TO THE NORTHEAST AT SIMILAR SPEEDS LATER THIS MORNING. THIS WIND WILL RESULT IN CONSIDERABLE BLOWING AND DRIFTING OF SNOW ACROSS SOUTH PASS WITH VISIBILITY NEAR ZERO AT TIMES. IN ADDITION... WIND CHILLS WILL BE 10 BELOW TO 20 BELOW ZERO. * IMPACTS...TRAVEL ACROSS SOUTH PASS WILL BE TREACHEROUS THROUGH EARLY FRIDAY MORNING. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW AND BLOWING SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$ WYZ005-007-310700- /O.CON.KRIW.WW.Y.0045.000000T0000Z-101231T1200Z/ SOUTHWEST BIG HORN BASIN-OWL CREEK AND BRIDGER MOUNTAINS- INCLUDING THE CITY OF...THERMOPOLIS 248 PM MST THU DEC 30 2010 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST FRIDAY... A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST FRIDAY. * SUMMARY AND TIMING...PERIODS OF SNOW...HEAVY AT TIMES...WILL OCCUR THROUGH EARLY FRIDAY MORNING. * SNOW ACCUMULATIONS...4 TO 5 INCHES OF SNOW HAS FALLEN ACROSS THERMOPOLIS SO FAR TODAY. A STORM TOTAL OF 4 TO 6 INCHES OF SNOW WILL ACCUMULATE IN THE LOWER ELEVATIONS OF HOT SPRINGS COUNTY THROUGH FRIDAY MORNING. THE ADJACENT OWL CREEK AND BRIDGER MOUNTAINS WILL RECEIVE 6 TO 12 INCHES OF SNOW...AMOUNTS WILL GRADUALLY INCREASE AS YOU NEAR THE RANGE. * WIND AND VISIBILITY...NORTH TO NORTHEAST WINDS OF 20 TO 30 MPH WITH GUSTS OF 35 TO 45 MPH WILL CAUSE SIGNIFICANT BLOWING AND DRIFTING SNOW. THESE STRONG WINDS WILL RESULT IN CONSIDERABLE BLOWING AND DRIFTING OF SNOW...ESPECIALLY IN THE WIND RIVER CANYON. NEAR WHITEOUT CONDITIONS ARE POSSIBLE IN THE WIND RIVER CANYON. IN ADDITION...WINDS WILL COMBINE WITH COLD TEMPERATURES TO PRODUCE WIND CHILLS AROUND 10 BELOW. * IMPACTS...TRAVEL ACROSS HOT SPRINGS COUNTY...ESPECIALLY THROUGH THE WIND RIVER CANYON WILL REMAIN HAZARDOUS THROUGH EARLY FRIDAY MORNING. THOSE PLANNING OUTDOOR ACTIVITIES SHOULD BE PREPARED FOR DETERIORATING WEATHER CONDITIONS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW AND BLOWING SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$ WYZ006-310700- /O.CON.KRIW.WW.Y.0045.000000T0000Z-101231T1200Z/ SOUTHEAST BIG HORN BASIN- INCLUDING THE CITY OF...WORLAND 248 PM MST THU DEC 30 2010 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST FRIDAY... A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST FRIDAY. * SUMMARY AND TIMING...PERIODS OF SNOW...HEAVY AT TIMES...WILL OCCUR THROUGH EARLY FRIDAY MORNING. * SNOW ACCUMULATIONS...AROUND 4 INCHES OF SNOW HAVE FALLEN IN WORLAND. A STORM TOTAL OF 3 TO 6 INCHES ACROSS THE BIG HORN BASIN WILL ACCUMULATE BY EARLY FRIDAY MORNING. * WIND AND VISIBILITY...NORTHWEST WINDS OF 10 TO 20 MPH WILL CREATE SOME BLOWING AND DRIFTING SNOW TODAY. IN ADDITION... WINDS WILL COMBINE WITH COLD TEMPERATURES TO PRODUCE WIND CHILLS FROM 15 BELOW TO 25 BELOW ZERO. * IMPACTS...TRAVEL ACROSS WASHAKIE COUNTY WILL BE HAZARDOUS TODAY WITH SLICK AND SNOW PACKED ROADS AND POOR VISIBILITY. THOSE PLANNING OUTDOOR ACTIVITIES SHOULD BE PREPARED FOR DETERIORATING WEATHER CONDITIONS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW AND BLOWING SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$ WYZ004-310700- /O.CON.KRIW.WW.Y.0045.000000T0000Z-101231T1200Z/ NORTH BIG HORN BASIN- INCLUDING THE CITIES OF...POWELL...LOVELL...GREYBULL...BASIN 248 PM MST THU DEC 30 2010 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST FRIDAY... A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST FRIDAY. * SUMMARY AND TIMING...PERIODS OF SNOW...HEAVY AT TIMES...WILL OCCUR THROUGH EARLY FRIDAY MORNING. * SNOW ACCUMULATIONS...1 TO 3 INCHES OF SNOW HAS FALLEN ACROSS THE AREA. AN ADDITIONAL 1 TO 3 INCHES IS EXPECTED THROUGH EARLY FRIDAY MORNING. * WIND AND VISIBILITY...NORTH TO NORTHEAST WINDS OF 10 TO 20 MPH WITH GUSTS TO 35 MPH WILL CAUSE SIGNIFICANT BLOWING AND DRIFTING SNOW. IN ADDITION...WINDS WILL COMBINE WITH COLD TEMPERATURES TO PRODUCE WIND CHILLS OF 15 BELOW TO 25 BELOW TONIGHT. * IMPACTS...TRAVEL ACROSS THE AREA WILL REMAIN HAZARDOUS THROUGH TONIGHT. THOSE PLANNING OUTDOOR ACTIVITIES SHOULD BE PREPARED FOR DETERIORATING WEATHER CONDITIONS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW AND BLOWING SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$ WYZ010-011-310700- /O.CON.KRIW.WW.Y.0045.000000T0000Z-101231T1200Z/ NORTHEAST JOHNSON COUNTY-SOUTHEAST JOHNSON COUNTY- INCLUDING THE CITIES OF...BUFFALO...KAYCEE 248 PM MST THU DEC 30 2010 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST FRIDAY... A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST FRIDAY. * SUMMARY AND TIMING...PERIODS OF SNOW...MODERATE AT TIMES... WILL OCCUR THROUGH EARLY FRIDAY MORNING. * SNOW ACCUMULATIONS...3 TO 6 INCHES WILL ACCUMULATE BY EARLY FRIDAY MORNING. * WIND AND VISIBILITY...NORTH TO NORTHEAST WINDS OF 20 TO 30 MPH WITH GUSTS TO 45 MPH WILL CAUSE SIGNIFICANT BLOWING AND DRIFTING SNOW...ALONG WITH POSSIBLE WHITE OUT CONDITIONS. IN ADDITION...WINDS WILL COMBINE WITH COLD TEMPERATURES TO PRODUCE WIND CHILLS OF 15 BELOW TO 25 BELOW. * IMPACTS...TRAVEL ACROSS JOHNSON COUNTY...INCLUDING INTERSTATES 25 AND 90...WILL REMAIN HAZARDOUS THROUGH EARLY FRIDAY MORNING. THOSE PLANNING OUTDOOR ACTIVITIES SHOULD BE PREPARED FOR DETERIORATING WEATHER CONDITIONS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW AND BLOWING SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$ WYZ003-310700- /O.CON.KRIW.WW.Y.0045.000000T0000Z-101231T1200Z/ CODY FOOTHILLS- INCLUDING THE CITIES OF...CODY...MEETEETSE 248 PM MST THU DEC 30 2010 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST FRIDAY... A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST FRIDAY. * SUMMARY AND TIMING...PERIODS OF SNOW...HEAVY AT TIMES...WILL OCCUR THROUGH EARLY FRIDAY MORNING. * SNOW ACCUMULATIONS...2 TO 3 INCHES OF SNOW HAS FALLEN ACROSS THE AREA. AN ADDITIONAL 1 TO 3 INCHES OF SNOW WILL ACCUMULATE THROUGH EARLY FRIDAY MORNING. * WIND AND VISIBILITY...NORTH TO NORTHEAST WINDS OF 15 TO 25 MPH WITH GUSTS TO 30 MPH WILL CAUSE SIGNIFICANT BLOWING AND DRIFTING SNOW. IN ADDITION...WINDS WILL COMBINE WITH COLD TEMPERATURES TO PRODUCE WIND CHILLS OF 15 BELOW TO 25 BELOW. * IMPACTS...TRAVEL ACROSS THE AREA WILL REMAIN HAZARDOUS THROUGH EARLY FRIDAY MORNING. THOSE PLANNING OUTDOOR ACTIVITIES SHOULD BE PREPARED FOR DETERIORATING WEATHER CONDITIONS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW AND BLOWING SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$ WYZ017-310700- /O.CON.KRIW.WW.Y.0045.000000T0000Z-101231T1200Z/ WIND RIVER BASIN- INCLUDING THE CITIES OF...RIVERTON...SHOSHONI 248 PM MST THU DEC 30 2010 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST FRIDAY... A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST FRIDAY. * SUMMARY AND TIMING...PERIODS OF SNOW...HEAVY AT TIMES...WILL OCCUR THROUGH EARLY FRIDAY MORNING. * SNOW ACCUMULATIONS...3 TO 6 INCHES OF SNOW HAS FALLEN IN RIVERTON. ACCUMULATIONS OF 2 TO 7 INCHES WILL OCCUR ACROSS THE WIND RIVER BASIN BY EARLY FRIDAY MORNING. * WIND AND VISIBILITY...NORTH TO NORTHEAST WINDS OF 15 TO 25 MPH WITH SOME GUSTS OF 35 MPH WILL CAUSE SIGNIFICANT BLOWING AND DRIFTING SNOW. IN ADDITION...WINDS WILL COMBINE WITH COLD TEMPERATURES TO PRODUCE WIND CHILLS OF 15 BELOW TO 25 BELOW ZERO BY TONIGHT. * IMPACTS...TRAVEL ACROSS THE WIND RIVER BASIN WILL REMAIN HAZARDOUS THROUGH FRIDAY MORNING. THOSE PLANNING OUTDOOR ACTIVITIES SHOULD BE PREPARED FOR DETERIORATING WEATHER CONDITIONS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW AND BLOWING SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$
951 WWUS45 KRIW 310205 WSWRIW URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE RIVERTON WY 705 PM MST THU DEC 30 2010 ...SIGNIFICANT SNOWFALL WILL CONTINUE EAST OF THE DIVIDE AND WILL CONTINUE THROUGH EARLY FRIDAY MORNING... .A PACIFIC STORM SYSTEM MOVING EAST ACROSS THE ROCKIES...AND AN ARCTIC COLD FRONT PUSHING SOUTH WILL COMBINE FOR SIGNIFICANT SNOWFALL EAST OF THE DIVIDE AND SWEETWATER COUNTY THROUGH EARLY FRIDAY MORNING. WINDY CONDITIONS WILL RESULT IN CONSIDERABLE BLOWING AND DRIFTING SNOW...AS WELL AS NEAR WHITEOUT CONDITIONS IN SOME AREAS. FRIGID AIR WILL BE IN PLACE IN THE WAKE OF THE ARCTIC COLD FRONT...WITH WIND CHILL READINGS 10 BELOW TO 30 BELOW ZERO TONIGHT. WYZ015-018-311015- /O.CON.KRIW.WS.W.0021.000000T0000Z-101231T1200Z/ WIND RIVER MOUNTAINS EAST-LANDER FOOTHILLS- INCLUDING THE CITY OF...LANDER 705 PM MST THU DEC 30 2010 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 AM MST FRIDAY... A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 AM MST FRIDAY. * SUMMARY AND TIMING...PERIODS OF SNOW...HEAVY AT TIMES WILL OCCUR THROUGH EARLY FRIDAY MORNING. THE HEAVIEST SNOWFALL WITH THIS STORM IS EXPECTED THROUGH THIS EVENING AS FLOW SHIFTS TO NORTHERLY AND AIDS OROGRAPHIC LIFT. * SNOW ACCUMULATIONS...8 TO 12 INCHES OF SNOW HAS FALLEN ON THE EAST SLOPES OF THE WIND RIVER MOUNTAINS WITH AROUND 6 INCHES OF SNOWFALL IN LANDER. ANOTHER 2 TO 5 INCHES OF ADDITIONAL ACCUMULATION IS POSSIBLE BEFORE FRIDAY MORNING. * WIND AND VISIBILITY...NORTH TO NORTHEAST WINDS OF 10 TO 20 MPH WITH GUSTS TO 30 MPH WILL CAUSE SIGNIFICANT BLOWING AND DRIFTING SNOW...ESPECIALLY SOUTHEAST OF LANDER TOWARDS BEAVER RIM AND SOUTH PASS. IN ADDITION...WINDS WILL COMBINE WITH TEMPERATURES AROUND ZERO DEGREES TO PRODUCE WIND CHILLS AROUND 15 BELOW BY FRIDAY MORNING. * IMPACTS...TRAVEL ACROSS THE WIND RIVER BASIN AND SOUTH PASS WILL REMAIN HAZARDOUS THROUGH EARLY FRIDAY MORNING. THOSE PLANNING OUTDOOR ACTIVITIES SHOULD BE PREPARED FOR DETERIORATING WEATHER CONDITIONS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED OR OCCURRING. SIGNIFICANT AMOUNTS OF SNOW ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN AN EMERGENCY. IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT... FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY. && $$ WYZ020-311015- /O.CON.KRIW.WS.W.0021.000000T0000Z-101231T1200Z/ NATRONA COUNTY LOWER ELEVATIONS- INCLUDING THE CITY OF...CASPER 705 PM MST THU DEC 30 2010 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 AM MST FRIDAY... A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 AM MST FRIDAY. * SUMMARY AND TIMING...PERIODS OF SNOW...HEAVY AT TIMES...WILL OCCUR THROUGH EARLY FRIDAY MORNING. THE HEAVIEST SNOWFALL WITH THIS STORM IS EXPECTED THROUGH THIS EVENING. * SNOW ACCUMULATIONS...3 TO 7 INCHES OF SNOW HAS FALLEN OVER THE CASPER AREA ALONG WITH AT LEAST 6 INCHES REPORTED ON CASPER MOUNTAIN THIS MORNING. SOUTHERN CASPER AND AREAS NEAR CASPER MOUNTAIN COULD SEE ADDITIONAL SNOWFALL AMOUNTS BETWEEN 3 AND 7 INCHES FOR A STORM TOTAL OF 6 TO 12 INCHES AROUND CASPER. A STORM TOTAL OF 4 TO 8 INCHES OF SNOWFALL IS EXPECTED ACROSS THE REST OF NATRONA COUNTY THROUGH EARLY FRIDAY MORNING. * WIND AND VISIBILITY...NORTH TO NORTHEAST WINDS OF 15 TO 30 MPH WITH SOME GUSTS OF 35 MPH WILL CAUSE SIGNIFICANT BLOWING AND DRIFTING SNOW. NEAR WHITEOUT CONDITIONS ARE POSSIBLE IN RURAL AREAS. WINDS WILL ALSO COMBINE WITH VERY COLD TEMPERATURES TO PRODUCE WIND CHILLS OF 10 BELOW TO 20 BELOW THURSDAY. * IMPACTS...TRAVEL ACROSS NATRONA COUNTY AS WELL AS ON CASPER MOUNTAIN WILL REMAIN HAZARDOUS THROUGH EARLY FRIDAY MORNING. THOSE PLANNING OUTDOOR ACTIVITIES SHOULD BE PREPARED FOR DETERIORATING WEATHER CONDITIONS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING IS ISSUED WHEN SEVERE WINTER WEATHER IS EXPECTED TO OCCUR. HEAVY SNOW IS FORECAST TO ACCUMULATE IN THE AFFECTED AREAS...CAUSING HAZARDOUS DRIVING CONDITIONS. GUSTY WIND WILL ALSO CAUSE REDUCED VISIBILITIES...AS WELL AS BLOWING AND DRIFTING SNOW. THOSE WITH TRAVEL PLANS IN THE WARNING AREA ARE ADVISED TO CONSIDER POSTPONING TRAVEL...OR SHOULD USE EXTREME CAUTION IF TRAVEL IS NECESSARY. && $$ WYZ022-311015- /O.CON.KRIW.WS.W.0021.000000T0000Z-101231T1200Z/ CASPER MOUNTAIN- 705 PM MST THU DEC 30 2010 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 AM MST FRIDAY... A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 AM MST FRIDAY. * SUMMARY AND TIMING...PERIODS OF SNOW...HEAVY AT TIMES...WILL OCCUR THROUGH EARLY FRIDAY MORNING. THE HEAVIEST SNOWFALL WITH THIS STORM IS EXPECTED THROUGH THIS EVENING. * SNOW ACCUMULATIONS...AT LEAST 6 INCHES OF SNOW HAS FALLEN ON CASPER MOUNTAIN AS OF EARLY THIS MORNING. 12 TO 18 INCHES WITH ISOLATED AREAS RECEIVING TWO FEET ARE EXPECTED BY FRIDAY MORNING. * WIND AND VISIBILITY...NORTH TO NORTHEAST WINDS OF 20 TO 30 MPH WITH SOME GUSTS OF 35 MPH WILL CAUSE SIGNIFICANT BLOWING AND DRIFTING SNOW...RESULTING IN NEAR WHITEOUT CONDITIONS AT TIMES. WINDS WILL ALSO COMBINE WITH VERY COLD TEMPERATURES TO PRODUCE WIND CHILLS OF 15 BELOW TO 25 BELOW OVERNIGHT. * IMPACTS...TRAVEL ACROSS NATRONA COUNTY AS WELL AS ON CASPER MOUNTAIN WILL REMAIN HAZARDOUS THROUGH EARLY FRIDAY MORNING. THOSE PLANNING OUTDOOR ACTIVITIES SHOULD BE PREPARED FOR DETERIORATING WEATHER CONDITIONS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING IS ISSUED WHEN SEVERE WINTER WEATHER IS EXPECTED TO OCCUR. HEAVY SNOW IS FORECAST TO ACCUMULATE IN THE AFFECTED AREAS...CAUSING HAZARDOUS DRIVING CONDITIONS. GUSTY WIND WILL ALSO CAUSE REDUCED VISIBILITIES...AS WELL AS BLOWING AND DRIFTING SNOW. THOSE WITH TRAVEL PLANS IN THE WARNING AREA ARE ADVISED TO CONSIDER POSTPONING TRAVEL...OR SHOULD USE EXTREME CAUTION IF TRAVEL IS NECESSARY. && $$ WYZ019-311015- /O.CON.KRIW.WS.W.0021.000000T0000Z-101231T1200Z/ GREEN MOUNTAINS AND RATTLESNAKE RANGE- INCLUDING THE CITY OF...JEFFREY CITY 705 PM MST THU DEC 30 2010 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 AM MST FRIDAY... A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 AM MST FRIDAY. * SUMMARY AND TIMING...PERIODS OF SNOW...HEAVY AT TIMES...WILL OCCUR THROUGH EARLY FRIDAY MORNING. * SNOW ACCUMULATIONS...3 TO 6 INCHES WILL ACCUMULATE BY EARLY FRIDAY MORNING...WITH ISOLATED HIGHER AMOUNTS NEAR 8 INCHES. * WIND AND VISIBILITY...NORTH TO NORTHEAST WINDS OF 15 TO 25 MPH WITH SOME GUSTS TO 45 MPH WILL CAUSE SIGNIFICANT BLOWING AND DRIFTING SNOW...ALONG WITH POSSIBLE WHITE OUT CONDITIONS. IN ADDITION... WINDS WILL COMBINE WITH COLD TEMPERATURES TO PRODUCE WIND CHILLS OF 15 BELOW TO 25 BELOW ZERO OVERNIGHT. * IMPACTS...TRAVEL ACROSS THE GREEN MOUNTAINS...INCLUDING HIGHWAY 287 THROUGH SWEETWATER STATION AND JEFFREY CITY...WILL REMAIN HAZARDOUS THROUGH EARLY FRIDAY MORNING. THOSE PLANNING OUTDOOR ACTIVITIES SHOULD BE PREPARED FOR DETERIORATING WEATHER CONDITIONS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED OR OCCURRING. SIGNIFICANT AMOUNTS OF SNOW ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN AN EMERGENCY. IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT... FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY. && $$ WYZ028>030-311015- /O.CON.KRIW.WS.W.0021.000000T0000Z-101231T1200Z/ ROCK SPRINGS AND GREEN RIVER-FLAMING GORGE-EAST SWEETWATER COUNTY- INCLUDING THE CITIES OF...ROCK SPRINGS...GREEN RIVER...WAMSUTTER 705 PM MST THU DEC 30 2010 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 AM MST FRIDAY... A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 AM MST FRIDAY. * SUMMARY AND TIMING...PERIODS OF SNOW WILL CONTINUE THROUGH EARLY FRIDAY MORNING. * SNOW ACCUMULATIONS...1 TO 3 INCHES OF SNOW HAS FALLEN IN ROCK SPRINGS SO FAR. AROUND 5 INCHES HAS BEEN REPORTED AROUND GREEN RIVER. A STORM TOTAL OF 3 TO 7 INCHES WILL ACCUMULATE BY EARLY FRIDAY MORNING. * WIND AND VISIBILITY...NORTHEAST WINDS OF 20 TO 30 MPH WILL CREATE CONSIDERABLE BLOWING AND DRIFTING SNOW THROUGH EARLY FRIDAY MORNING ALONG WITH WHITE OUT CONDITIONS. IN ADDITION ...WINDS WILL COMBINE WITH COLD TEMPERATURES TO PRODUCE WIND CHILLS FROM ZERO TO 20 BELOW ZERO THURSDAY. * IMPACTS...TRAVEL ACROSS SWEETWATER COUNTY...INCLUDING INTERSTATE 80...WILL REMAIN HAZARDOUS IF NOT IMPOSSIBLE THROUGH EARLY FRIDAY MORNING. THOSE PLANNING OUTDOOR ACTIVITIES SHOULD BE PREPARED FOR DETERIORATING WEATHER CONDITIONS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED OR OCCURRING. SIGNIFICANT AMOUNTS OF SNOW ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN AN EMERGENCY. IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT... FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY. && $$ WYZ009-311015- /O.EXA.KRIW.WW.Y.0045.000000T0000Z-101231T1200Z/ BIGHORN MOUNTAINS SOUTHEAST- 705 PM MST THU DEC 30 2010 ...WINTER WEATHER ADVISORY IN EFFECT UNTIL 5 AM MST FRIDAY... THE NATIONAL WEATHER SERVICE IN RIVERTON HAS ISSUED A WINTER WEATHER ADVISORY FOR THE EAST SLOPE OF THE BIG HORN MOUNTAINS WHICH IS IN EFFECT UNTIL 5 AM MST FRIDAY. * SUMMARY AND TIMING...PERIODS OF SNOW...HEAVY AT TIMES...WILL OCCUR THROUGH EARLY FRIDAY MORNING. * SNOW ACCUMULATIONS...6 TO 8 INCHES OF SNOW HAS FALLEN ALONG HIGHWAY 16 BETWEEN POWDER RIVER PASS AND BUFFALO PASS SO FAR TODAY. A STORM TOTAL OF 7 TO 9 INCHES OF SNOW WILL ACCUMULATE THROUGH EARLY FRIDAY MORNING. * WIND AND VISIBILITY...NORTH TO NORTHEAST WINDS OF 20 TO 30 MPH WITH GUSTS OF 35 MPH WILL CAUSE SIGNIFICANT BLOWING AND DRIFTING SNOW PRIMARILY OVER POWDER RIVER PASS. IN ADDITION...WINDS WILL COMBINE WITH COLD TEMPERATURES TO PRODUCE WIND CHILLS AROUND 10 TO 20 BELOW. * IMPACTS...TRAVEL OVER GRANITE AND POWDER RIVER PASSES WILL REMAIN HAZARDOUS THROUGH EARLY FRIDAY MORNING. THOSE PLANNING OUTDOOR ACTIVITIES SHOULD BE PREPARED FOR DETERIORATING WEATHER CONDITIONS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW AND BLOWING SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$ WYZ008-311015- /O.EXA.KRIW.WW.Y.0045.000000T0000Z-101231T1200Z/ BIGHORN MOUNTAINS WEST- 705 PM MST THU DEC 30 2010 ...WINTER WEATHER ADVISORY IN EFFECT UNTIL 5 AM MST FRIDAY... THE NATIONAL WEATHER SERVICE IN RIVERTON HAS ISSUED A WINTER WEATHER ADVISORY FOR THE WEST SLOPE OF THE BIG HORN MOUNTAINS ABOVE 8000 FEET WHICH IS IN EFFECT UNTIL 5 AM MST FRIDAY. * SUMMARY AND TIMING...PERIODS OF SNOW...HEAVY AT TIMES...WILL OCCUR THROUGH TONIGHT WITH THE HEAVIEST SNOWFALL EXPECTED BEFORE MIDNIGHT. * SNOW ACCUMULATIONS...6 TO 8 INCHES OF SNOW HAS FALLEN ON POWDER RIVER PASS WITH LESSER AMOUNTS AT THE LOWER ELEVATIONS WEST OF THE PASS AND ON THE REST OF THE WEST SLOPE OF THE BIG HORN MOUNTAINS. A STORM TOTAL OF 7 TO 9 INCHES OF SNOW WILL ACCUMULATE ON POWDER RIVER PASS WITH ONLY 4 TO 6 INCHES AT THE LOWER ELEVATIONS WEST OF THE PASS AND ON THE REST OF THE WEST SLOPE OF THE BIG HORN MOUNTAINS BY EARLY FRIDAY MORNING. * WIND AND VISIBILITY...NORTH TO NORTHEAST WINDS OF 20 TO 30 MPH WITH GUSTS OF 35 MPH WILL CAUSE SIGNIFICANT BLOWING AND DRIFTING SNOW PRIMARILY OVER POWDER RIVER PASS. IN ADDITION...WINDS WILL COMBINE WITH COLD TEMPERATURES TO PRODUCE WIND CHILLS AROUND 10 TO 20 BELOW. * IMPACTS...TRAVEL OVER GRANITE AND POWDER RIVER PASSES WILL REMAIN HAZARDOUS THROUGH EARLY FRIDAY MORNING. THOSE PLANNING OUTDOOR ACTIVITIES SHOULD BE PREPARED FOR DETERIORATING WEATHER CONDITIONS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW AND BLOWING SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$ WYZ014-311015- /O.CON.KRIW.WW.Y.0045.000000T0000Z-101231T1200Z/ WIND RIVER MOUNTAINS WEST- 705 PM MST THU DEC 30 2010 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST FRIDAY... A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST FRIDAY. * SUMMARY AND TIMING...LIGHT SNOW...OCCASIONALLY MODERATE WILL CONTINUE ACROSS THE WESTERN SLOPES OF THE WIND RIVER MOUNTAINS...WITH THE HIGHEST AMOUNTS EXPECTED ABOVE 9000 FEET. * SNOW ACCUMULATIONS...11 INCHES OF SNOW FELL WEDNESDAY. AN ADDITIONAL 1 TO 3 INCHES IS EXPECTED DURING THE SECOND PORTION OF THIS STORM...WITH MUCH HIGHER AMOUNTS CLOSE TO THE CONTINENTAL DIVIDE BY LATE TONIGHT. * WIND AND VISIBILITY...NORTH NORTHWEST WINDS OF 15 TO 30 MPH WITH GUSTS TO 45 MPH OVER SOUTH PASS WILL SWITCH TO THE NORTHEAST AT SIMILAR SPEEDS LATER THIS MORNING. THIS WIND WILL RESULT IN CONSIDERABLE BLOWING AND DRIFTING OF SNOW ACROSS SOUTH PASS WITH VISIBILITY NEAR ZERO AT TIMES. IN ADDITION... WIND CHILLS WILL BE 10 BELOW TO 20 BELOW ZERO. * IMPACTS...TRAVEL ACROSS SOUTH PASS WILL BE TREACHEROUS THROUGH EARLY FRIDAY MORNING. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW AND BLOWING SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$ WYZ005-007-311015- /O.CON.KRIW.WW.Y.0045.000000T0000Z-101231T1200Z/ SOUTHWEST BIG HORN BASIN-OWL CREEK AND BRIDGER MOUNTAINS- INCLUDING THE CITY OF...THERMOPOLIS 705 PM MST THU DEC 30 2010 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST FRIDAY... A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST FRIDAY. * SUMMARY AND TIMING...PERIODS OF SNOW...HEAVY AT TIMES...WILL OCCUR THROUGH EARLY FRIDAY MORNING. * SNOW ACCUMULATIONS...4 TO 5 INCHES OF SNOW HAS FALLEN ACROSS THERMOPOLIS SO FAR TODAY. A STORM TOTAL OF 4 TO 6 INCHES OF SNOW WILL ACCUMULATE IN THE LOWER ELEVATIONS OF HOT SPRINGS COUNTY THROUGH FRIDAY MORNING. THE ADJACENT OWL CREEK AND BRIDGER MOUNTAINS WILL RECEIVE 6 TO 12 INCHES OF SNOW... AMOUNTS WILL GRADUALLY INCREASE AS YOU NEAR THE RANGE. * WIND AND VISIBILITY...NORTH TO NORTHEAST WINDS OF 20 TO 30 MPH WITH GUSTS OF 35 TO 45 MPH WILL CAUSE SIGNIFICANT BLOWING AND DRIFTING SNOW. THESE STRONG WINDS WILL RESULT IN CONSIDERABLE BLOWING AND DRIFTING OF SNOW...ESPECIALLY IN THE WIND RIVER CANYON. NEAR WHITEOUT CONDITIONS ARE POSSIBLE IN THE WIND RIVER CANYON. IN ADDITION...WINDS WILL COMBINE WITH COLD TEMPERATURES TO PRODUCE WIND CHILLS AROUND 10 BELOW. * IMPACTS...TRAVEL ACROSS HOT SPRINGS COUNTY...ESPECIALLY THROUGH THE WIND RIVER CANYON WILL REMAIN HAZARDOUS THROUGH EARLY FRIDAY MORNING. THOSE PLANNING OUTDOOR ACTIVITIES SHOULD BE PREPARED FOR DETERIORATING WEATHER CONDITIONS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW AND BLOWING SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$ WYZ006-311015- /O.CON.KRIW.WW.Y.0045.000000T0000Z-101231T1200Z/ SOUTHEAST BIG HORN BASIN- INCLUDING THE CITY OF...WORLAND 705 PM MST THU DEC 30 2010 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST FRIDAY... A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST FRIDAY. * SUMMARY AND TIMING...PERIODS OF SNOW...HEAVY AT TIMES...WILL OCCUR THROUGH EARLY FRIDAY MORNING. * SNOW ACCUMULATIONS...AROUND 4 INCHES OF SNOW HAVE FALLEN IN WORLAND. A STORM TOTAL OF 3 TO 6 INCHES ACROSS THE BIG HORN BASIN WILL ACCUMULATE BY EARLY FRIDAY MORNING. * WIND AND VISIBILITY...NORTHWEST WINDS OF 10 TO 20 MPH WILL CREATE SOME BLOWING AND DRIFTING SNOW TODAY. IN ADDITION... WINDS WILL COMBINE WITH COLD TEMPERATURES TO PRODUCE WIND CHILLS FROM 15 BELOW TO 25 BELOW ZERO. * IMPACTS...TRAVEL ACROSS WASHAKIE COUNTY WILL BE HAZARDOUS TODAY WITH SLICK AND SNOW PACKED ROADS AND POOR VISIBILITY. THOSE PLANNING OUTDOOR ACTIVITIES SHOULD BE PREPARED FOR DETERIORATING WEATHER CONDITIONS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW AND BLOWING SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$ WYZ004-311015- /O.CON.KRIW.WW.Y.0045.000000T0000Z-101231T1200Z/ NORTH BIG HORN BASIN- INCLUDING THE CITIES OF...POWELL...LOVELL...GREYBULL...BASIN 705 PM MST THU DEC 30 2010 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST FRIDAY... A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST FRIDAY. * SUMMARY AND TIMING...PERIODS OF SNOW...HEAVY AT TIMES...WILL OCCUR THROUGH EARLY FRIDAY MORNING. * SNOW ACCUMULATIONS...1 TO 3 INCHES OF SNOW HAS FALLEN ACROSS THE AREA. AN ADDITIONAL 1 TO 3 INCHES IS EXPECTED THROUGH EARLY FRIDAY MORNING. * WIND AND VISIBILITY...NORTH TO NORTHEAST WINDS OF 10 TO 20 MPH WITH GUSTS TO 35 MPH WILL CAUSE SIGNIFICANT BLOWING AND DRIFTING SNOW. IN ADDITION...WINDS WILL COMBINE WITH COLD TEMPERATURES TO PRODUCE WIND CHILLS OF 15 BELOW TO 25 BELOW TONIGHT. * IMPACTS...TRAVEL ACROSS THE AREA WILL REMAIN HAZARDOUS THROUGH TONIGHT. THOSE PLANNING OUTDOOR ACTIVITIES SHOULD BE PREPARED FOR DETERIORATING WEATHER CONDITIONS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW AND BLOWING SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$ WYZ010-011-311015- /O.CON.KRIW.WW.Y.0045.000000T0000Z-101231T1200Z/ NORTHEAST JOHNSON COUNTY-SOUTHEAST JOHNSON COUNTY- INCLUDING THE CITIES OF...BUFFALO...KAYCEE 705 PM MST THU DEC 30 2010 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST FRIDAY... A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST FRIDAY. * SUMMARY AND TIMING...PERIODS OF SNOW...MODERATE AT TIMES... WILL OCCUR THROUGH EARLY FRIDAY MORNING. * SNOW ACCUMULATIONS...3 TO 6 INCHES WILL ACCUMULATE BY EARLY FRIDAY MORNING. * WIND AND VISIBILITY...NORTH TO NORTHEAST WINDS OF 20 TO 30 MPH WITH GUSTS TO 45 MPH WILL CAUSE SIGNIFICANT BLOWING AND DRIFTING SNOW...ALONG WITH POSSIBLE WHITE OUT CONDITIONS. IN ADDITION...WINDS WILL COMBINE WITH COLD TEMPERATURES TO PRODUCE WIND CHILLS OF 15 BELOW TO 25 BELOW. * IMPACTS...TRAVEL ACROSS JOHNSON COUNTY...INCLUDING INTERSTATES 25 AND 90...WILL REMAIN HAZARDOUS THROUGH EARLY FRIDAY MORNING. THOSE PLANNING OUTDOOR ACTIVITIES SHOULD BE PREPARED FOR DETERIORATING WEATHER CONDITIONS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW AND BLOWING SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$ WYZ003-311015- /O.CON.KRIW.WW.Y.0045.000000T0000Z-101231T1200Z/ CODY FOOTHILLS- INCLUDING THE CITIES OF...CODY...MEETEETSE 705 PM MST THU DEC 30 2010 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST FRIDAY... A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST FRIDAY. * SUMMARY AND TIMING...PERIODS OF SNOW...HEAVY AT TIMES...WILL OCCUR THROUGH EARLY FRIDAY MORNING. * SNOW ACCUMULATIONS...2 TO 3 INCHES OF SNOW HAS FALLEN ACROSS THE AREA. AN ADDITIONAL 1 TO 3 INCHES OF SNOW WILL ACCUMULATE THROUGH EARLY FRIDAY MORNING. * WIND AND VISIBILITY...NORTH TO NORTHEAST WINDS OF 15 TO 25 MPH WITH GUSTS TO 30 MPH WILL CAUSE SIGNIFICANT BLOWING AND DRIFTING SNOW. IN ADDITION...WINDS WILL COMBINE WITH COLD TEMPERATURES TO PRODUCE WIND CHILLS OF 15 BELOW TO 25 BELOW. * IMPACTS...TRAVEL ACROSS THE AREA WILL REMAIN HAZARDOUS THROUGH EARLY FRIDAY MORNING. THOSE PLANNING OUTDOOR ACTIVITIES SHOULD BE PREPARED FOR DETERIORATING WEATHER CONDITIONS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW AND BLOWING SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$ WYZ017-311015- /O.CON.KRIW.WW.Y.0045.000000T0000Z-101231T1200Z/ WIND RIVER BASIN- INCLUDING THE CITIES OF...RIVERTON...SHOSHONI 705 PM MST THU DEC 30 2010 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST FRIDAY... A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST FRIDAY. * SUMMARY AND TIMING...PERIODS OF SNOW...HEAVY AT TIMES...WILL OCCUR THROUGH EARLY FRIDAY MORNING. * SNOW ACCUMULATIONS...3 TO 6 INCHES OF SNOW HAS FALLEN IN RIVERTON. ACCUMULATIONS OF 2 TO 7 INCHES WILL OCCUR ACROSS THE WIND RIVER BASIN BY EARLY FRIDAY MORNING. * WIND AND VISIBILITY...NORTH TO NORTHEAST WINDS OF 15 TO 25 MPH WITH SOME GUSTS OF 35 MPH WILL CAUSE SIGNIFICANT BLOWING AND DRIFTING SNOW. IN ADDITION...WINDS WILL COMBINE WITH COLD TEMPERATURES TO PRODUCE WIND CHILLS OF 15 BELOW TO 25 BELOW ZERO BY TONIGHT. * IMPACTS...TRAVEL ACROSS THE WIND RIVER BASIN WILL REMAIN HAZARDOUS THROUGH FRIDAY MORNING. THOSE PLANNING OUTDOOR ACTIVITIES SHOULD BE PREPARED FOR DETERIORATING WEATHER CONDITIONS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW AND BLOWING SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$
858 WWUS45 KRIW 310749 WSWRIW URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE RIVERTON WY 1249 AM MST FRI DEC 31 2010 ...SIGNIFICANT SNOWFALL WILL CONTINUE EAST OF THE DIVIDE AND WILL CONTINUE THROUGH EARLY FRIDAY MORNING... .A PACIFIC STORM SYSTEM MOVING EAST ACROSS THE ROCKIES...AND AN ARCTIC COLD FRONT PUSHING SOUTH WILL COMBINE FOR SIGNIFICANT SNOWFALL EAST OF THE DIVIDE AND SWEETWATER COUNTY THROUGH EARLY FRIDAY MORNING. WINDY CONDITIONS WILL RESULT IN CONSIDERABLE BLOWING AND DRIFTING SNOW...AS WELL AS NEAR WHITEOUT CONDITIONS IN SOME AREAS. FRIGID AIR WILL BE IN PLACE IN THE WAKE OF THE ARCTIC COLD FRONT...WITH WIND CHILL READINGS 10 BELOW TO 30 BELOW ZERO TONIGHT. WYZ015-018-311200- /O.CON.KRIW.WS.W.0021.000000T0000Z-101231T1200Z/ WIND RIVER MOUNTAINS EAST-LANDER FOOTHILLS- INCLUDING THE CITY OF...LANDER 1249 AM MST FRI DEC 31 2010 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 AM MST EARLY THIS MORNING... A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 AM MST EARLY THIS MORNING. * SUMMARY AND TIMING...PERIODS OF SNOW...HEAVY AT TIMES WILL OCCUR THROUGH EARLY FRIDAY MORNING. THE HEAVIEST SNOWFALL WITH THIS STORM IS EXPECTED THROUGH THIS EVENING AS FLOW SHIFTS TO NORTHERLY AND AIDS OROGRAPHIC LIFT. * SNOW ACCUMULATIONS...8 TO 12 INCHES OF SNOW HAS FALLEN ON THE EAST SLOPES OF THE WIND RIVER MOUNTAINS WITH AROUND 7 INCHES OF SNOWFALL IN LANDER. ANOTHER 1 TO 2 INCHES OF ADDITIONAL ACCUMULATION IS POSSIBLE BEFORE FRIDAY MORNING. * WIND AND VISIBILITY...NORTH TO NORTHEAST WINDS OF 10 TO 20 MPH WITH GUSTS TO 30 MPH WILL CAUSE SIGNIFICANT BLOWING AND DRIFTING SNOW...ESPECIALLY SOUTHEAST OF LANDER TOWARDS BEAVER RIM AND SOUTH PASS. IN ADDITION...WINDS WILL COMBINE WITH TEMPERATURES AROUND ZERO DEGREES TO PRODUCE WIND CHILLS AROUND 15 BELOW BY FRIDAY MORNING. * IMPACTS...TRAVEL ACROSS THE WIND RIVER BASIN AND SOUTH PASS WILL REMAIN HAZARDOUS THROUGH EARLY FRIDAY MORNING. THOSE PLANNING OUTDOOR ACTIVITIES SHOULD BE PREPARED FOR DETERIORATING WEATHER CONDITIONS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED OR OCCURRING. SIGNIFICANT AMOUNTS OF SNOW ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN AN EMERGENCY. IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT... FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY. && $$ WYZ020-311200- /O.CON.KRIW.WS.W.0021.000000T0000Z-101231T1200Z/ NATRONA COUNTY LOWER ELEVATIONS- INCLUDING THE CITY OF...CASPER 1249 AM MST FRI DEC 31 2010 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 AM MST EARLY THIS MORNING... A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 AM MST EARLY THIS MORNING. * SUMMARY AND TIMING...PERIODS OF SNOW...HEAVY AT TIMES...WILL OCCUR THROUGH EARLY FRIDAY MORNING. THE HEAVIEST SNOWFALL WITH THIS STORM IS EXPECTED THROUGH THIS EVENING. * SNOW ACCUMULATIONS...5 TO 8 INCHES OF SNOW HAS FALLEN OVER THE CASPER AREA. NEW SNOWFALL OF 1 TO 3 INCHES IS EXPECTED THROUGH 5 AM. * WIND AND VISIBILITY...NORTH TO NORTHEAST WINDS OF 15 TO 30 MPH WITH SOME GUSTS OF 35 MPH WILL CAUSE SIGNIFICANT BLOWING AND DRIFTING SNOW. NEAR WHITEOUT CONDITIONS ARE POSSIBLE IN RURAL AREAS. WINDS WILL ALSO COMBINE WITH VERY COLD TEMPERATURES TO PRODUCE WIND CHILLS OF 15 BELOW TO 25 BELOW THURSDAY. * IMPACTS...TRAVEL ACROSS NATRONA COUNTY AS WELL AS ON CASPER MOUNTAIN WILL REMAIN HAZARDOUS THROUGH EARLY FRIDAY MORNING. THOSE PLANNING OUTDOOR ACTIVITIES SHOULD BE PREPARED FOR DETERIORATING WEATHER CONDITIONS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING IS ISSUED WHEN SEVERE WINTER WEATHER IS EXPECTED TO OCCUR. HEAVY SNOW IS FORECAST TO ACCUMULATE IN THE AFFECTED AREAS...CAUSING HAZARDOUS DRIVING CONDITIONS. GUSTY WIND WILL ALSO CAUSE REDUCED VISIBILITIES...AS WELL AS BLOWING AND DRIFTING SNOW. THOSE WITH TRAVEL PLANS IN THE WARNING AREA ARE ADVISED TO CONSIDER POSTPONING TRAVEL...OR SHOULD USE EXTREME CAUTION IF TRAVEL IS NECESSARY. && $$ WYZ022-311200- /O.CON.KRIW.WS.W.0021.000000T0000Z-101231T1200Z/ CASPER MOUNTAIN- 1249 AM MST FRI DEC 31 2010 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 AM MST EARLY THIS MORNING... A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 AM MST EARLY THIS MORNING. * SUMMARY AND TIMING...PERIODS OF SNOW...HEAVY AT TIMES...WILL OCCUR THROUGH EARLY FRIDAY MORNING. THE HEAVIEST SNOWFALL WITH THIS STORM IS EXPECTED THROUGH THIS EVENING. * SNOW ACCUMULATIONS...AT LEAST 8 INCHES OF SNOW HAS FALLEN ON CASPER MOUNTAIN AS OF 11 PM THURSDAY EVENING. 10 TO 15 INCHES ARE EXPECTED BY FRIDAY MORNING. * WIND AND VISIBILITY...NORTH TO NORTHEAST WINDS OF 20 TO 30 MPH WITH SOME GUSTS OF 35 MPH WILL CAUSE SIGNIFICANT BLOWING AND DRIFTING SNOW...RESULTING IN NEAR WHITEOUT CONDITIONS AT TIMES. WINDS WILL ALSO COMBINE WITH VERY COLD TEMPERATURES TO PRODUCE WIND CHILLS OF 15 BELOW TO 25 BELOW OVERNIGHT. * IMPACTS...TRAVEL ACROSS NATRONA COUNTY AS WELL AS ON CASPER MOUNTAIN WILL REMAIN HAZARDOUS THROUGH EARLY FRIDAY MORNING. THOSE PLANNING OUTDOOR ACTIVITIES SHOULD BE PREPARED FOR DETERIORATING WEATHER CONDITIONS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING IS ISSUED WHEN SEVERE WINTER WEATHER IS EXPECTED TO OCCUR. HEAVY SNOW IS FORECAST TO ACCUMULATE IN THE AFFECTED AREAS...CAUSING HAZARDOUS DRIVING CONDITIONS. GUSTY WIND WILL ALSO CAUSE REDUCED VISIBILITIES...AS WELL AS BLOWING AND DRIFTING SNOW. THOSE WITH TRAVEL PLANS IN THE WARNING AREA ARE ADVISED TO CONSIDER POSTPONING TRAVEL...OR SHOULD USE EXTREME CAUTION IF TRAVEL IS NECESSARY. && $$ WYZ019-311200- /O.CON.KRIW.WS.W.0021.000000T0000Z-101231T1200Z/ GREEN MOUNTAINS AND RATTLESNAKE RANGE- INCLUDING THE CITY OF...JEFFREY CITY 1249 AM MST FRI DEC 31 2010 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 AM MST EARLY THIS MORNING... A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 AM MST EARLY THIS MORNING. * SUMMARY AND TIMING...PERIODS OF SNOW...HEAVY AT TIMES...WILL OCCUR THROUGH EARLY FRIDAY MORNING. * SNOW ACCUMULATIONS...4 TO 8 INCHES WILL ACCUMULATE BY EARLY FRIDAY MORNING. * WIND AND VISIBILITY...NORTH TO NORTHEAST WINDS OF 15 TO 25 MPH WITH SOME GUSTS TO 45 MPH WILL CAUSE SIGNIFICANT BLOWING AND DRIFTING SNOW...ALONG WITH POSSIBLE WHITE OUT CONDITIONS. IN ADDITION... WINDS WILL COMBINE WITH COLD TEMPERATURES TO PRODUCE WIND CHILLS OF 15 BELOW TO 25 BELOW ZERO OVERNIGHT. * IMPACTS...NO UNNECESSARY TRAVEL RESTRICTIONS REMAIN IN EFFECT FOR THE AREA FROM BEAVER RIM AND SWEETWATER STATION EAST TO JEFFREY CITY. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED OR OCCURRING. SIGNIFICANT AMOUNTS OF SNOW ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN AN EMERGENCY. IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT... FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY. && $$ WYZ028>030-311200- /O.CON.KRIW.WS.W.0021.000000T0000Z-101231T1200Z/ ROCK SPRINGS AND GREEN RIVER-FLAMING GORGE-EAST SWEETWATER COUNTY- INCLUDING THE CITIES OF...ROCK SPRINGS...GREEN RIVER...WAMSUTTER 1249 AM MST FRI DEC 31 2010 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 AM MST EARLY THIS MORNING... A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 AM MST EARLY THIS MORNING. * SUMMARY AND TIMING...PERIODS OF SNOW WILL CONTINUE THROUGH EARLY FRIDAY MORNING. * SNOW ACCUMULATIONS...3 TO 6 INCHES OF SNOW HAS AROUND THE AREA WITH ADDITIONAL SNOWFALL OF 1 TO 2 INCHES BY FRIDAY MORNING. * WIND AND VISIBILITY...NORTHEAST WINDS OF 20 TO 30 MPH WILL CREATE CONSIDERABLE BLOWING AND DRIFTING SNOW THROUGH EARLY FRIDAY MORNING ALONG WITH WHITE OUT CONDITIONS. IN ADDITION ...WINDS WILL COMBINE WITH COLD TEMPERATURES TO PRODUCE WIND CHILLS FROM ZERO TO 20 BELOW ZERO THURSDAY. * IMPACTS...INTERSTATE 80 REMAINS CLOSED AS OF EARLY FRIDAY MORNING. OTHER AREA HIGHWAYS WILL HAVE POOR TRAVEL CONDITIONS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED OR OCCURRING. SIGNIFICANT AMOUNTS OF SNOW ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN AN EMERGENCY. IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT... FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY. && $$ WYZ014-311200- /O.CON.KRIW.WW.Y.0045.000000T0000Z-101231T1200Z/ WIND RIVER MOUNTAINS WEST- 1249 AM MST FRI DEC 31 2010 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST EARLY THIS MORNING... A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST EARLY THIS MORNING. * SUMMARY AND TIMING...LIGHT SNOW...OCCASIONALLY MODERATE WILL CONTINUE ACROSS THE WESTERN SLOPES OF THE WIND RIVER MOUNTAINS...WITH THE HIGHEST AMOUNTS EXPECTED ABOVE 9000 FEET. * SNOW ACCUMULATIONS...11 INCHES OF SNOW FELL WEDNESDAY. AN ADDITIONAL 2 TO 4 INCHES IS EXPECTED DURING THE SECOND PORTION OF THIS STORM...WITH MUCH HIGHER AMOUNTS CLOSE TO THE CONTINENTAL DIVIDE BY EARLY FRIDAY. * WIND AND VISIBILITY...VISIBILITIES WILL BE NEAR ZERO AT TIMES AS NORTHEAST WINDS OF 25 TO 40 MPH CONTINUE. * IMPACTS...TRAVEL ACROSS SOUTH PASS WILL BE TREACHEROUS THROUGH EARLY FRIDAY MORNING. NO UNNECESSARY TRAVEL RESTRICTIONS REMAIN IN EFFECT EARLY FRIDAY MORNING OVER SOUTH PASS. WIND CHILLS OF 20 TO 35 BELOW ZERO WILL CONTINUE. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW AND BLOWING SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$ WYZ005-007-311200- /O.CON.KRIW.WW.Y.0045.000000T0000Z-101231T1200Z/ SOUTHWEST BIG HORN BASIN-OWL CREEK AND BRIDGER MOUNTAINS- INCLUDING THE CITY OF...THERMOPOLIS 1249 AM MST FRI DEC 31 2010 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST EARLY THIS MORNING... A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST EARLY THIS MORNING. * SUMMARY AND TIMING...PERIODS OF SNOW...HEAVY AT TIMES...WILL OCCUR THROUGH EARLY FRIDAY MORNING. * SNOW ACCUMULATIONS...5 TO 6 INCHES OF SNOW HAS FALLEN ACROSS THERMOPOLIS SO FAR. A STORM TOTAL OF 6 TO 7 INCHES OF SNOW WILL ACCUMULATE IN THE LOWER ELEVATIONS OF HOT SPRINGS COUNTY THROUGH FRIDAY MORNING. THE ADJACENT OWL CREEK AND BRIDGER MOUNTAINS WILL RECEIVE 6 TO 12 INCHES OF SNOW... AMOUNTS WILL GRADUALLY INCREASE AS YOU NEAR THE RANGE. * WIND AND VISIBILITY...NORTH TO NORTHEAST WINDS OF 15 TO 25 MPH BLOWING AND DRIFTING SNOW. IN ADDITION...WINDS WILL COMBINE WITH COLD TEMPERATURES TO PRODUCE WIND CHILLS AROUND 20 BELOW. * IMPACTS...TRAVEL ACROSS HOT SPRINGS COUNTY...ESPECIALLY THROUGH THE WIND RIVER CANYON WILL REMAIN HAZARDOUS THROUGH EARLY FRIDAY MORNING. THOSE PLANNING OUTDOOR ACTIVITIES SHOULD BE PREPARED FOR DETERIORATING WEATHER CONDITIONS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW AND BLOWING SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$ WYZ006-311200- /O.CON.KRIW.WW.Y.0045.000000T0000Z-101231T1200Z/ SOUTHEAST BIG HORN BASIN- INCLUDING THE CITY OF...WORLAND 1249 AM MST FRI DEC 31 2010 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST EARLY THIS MORNING... A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST EARLY THIS MORNING. * SUMMARY AND TIMING...PERIODS OF SNOW...HEAVY AT TIMES...WILL OCCUR THROUGH EARLY FRIDAY MORNING. * SNOW ACCUMULATIONS...AROUND 8 INCHES OF SNOW HAS FALLEN IN WORLAND AS OF EARLY FRIDAY. ADDITIONAL SNOWFALL WILL ONLY BE AROUND 1 INCH BY FRIDAY MORNING. * WIND AND VISIBILITY...NORTHWEST WINDS OF 10 TO 20 MPH WILL CREATE SOME BLOWING AND DRIFTING SNOW TODAY. IN ADDITION... WINDS WILL COMBINE WITH COLD TEMPERATURES TO PRODUCE WIND CHILLS FROM 15 BELOW TO 25 BELOW ZERO. * IMPACTS...TRAVEL ACROSS WASHAKIE COUNTY WILL BE HAZARDOUS TODAY WITH SLICK AND SNOW PACKED ROADS AND POOR VISIBILITY. THOSE PLANNING OUTDOOR ACTIVITIES SHOULD BE PREPARED FOR DETERIORATING WEATHER CONDITIONS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW AND BLOWING SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$ WYZ004-311200- /O.CON.KRIW.WW.Y.0045.000000T0000Z-101231T1200Z/ NORTH BIG HORN BASIN- INCLUDING THE CITIES OF...POWELL...LOVELL...GREYBULL...BASIN 1249 AM MST FRI DEC 31 2010 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST EARLY THIS MORNING... A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST EARLY THIS MORNING. * SUMMARY AND TIMING...PERIODS OF SNOW...HEAVY AT TIMES...WILL OCCUR THROUGH EARLY FRIDAY MORNING. * SNOW ACCUMULATIONS...1 TO 3 INCHES OF SNOW HAS FALLEN ACROSS THE AREA. AN ADDITIONAL 1 TO 3 INCHES IS EXPECTED THROUGH EARLY FRIDAY MORNING. * WIND AND VISIBILITY...NORTH TO NORTHEAST WINDS OF 10 TO 20 MPH WITH GUSTS TO 35 MPH WILL CAUSE SIGNIFICANT BLOWING AND DRIFTING SNOW. IN ADDITION...WINDS WILL COMBINE WITH COLD TEMPERATURES TO PRODUCE WIND CHILLS OF 15 BELOW TO 25 BELOW TONIGHT. * IMPACTS...TRAVEL ACROSS THE AREA WILL REMAIN HAZARDOUS THROUGH TONIGHT. THOSE PLANNING OUTDOOR ACTIVITIES SHOULD BE PREPARED FOR DETERIORATING WEATHER CONDITIONS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW AND BLOWING SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$ WYZ010-011-311200- /O.CON.KRIW.WW.Y.0045.000000T0000Z-101231T1200Z/ NORTHEAST JOHNSON COUNTY-SOUTHEAST JOHNSON COUNTY- INCLUDING THE CITIES OF...BUFFALO...KAYCEE 1249 AM MST FRI DEC 31 2010 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST EARLY THIS MORNING... A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST EARLY THIS MORNING. * SUMMARY AND TIMING...PERIODS OF SNOW...MODERATE AT TIMES... WILL OCCUR THROUGH EARLY FRIDAY MORNING. * SNOW ACCUMULATIONS...5 TO 7 INCHES WILL ACCUMULATE BY EARLY FRIDAY MORNING. BUFFALO REPORTED 5 TO 6 INCHES WITH 4 NORTHWEST OF KAYCEE LATE THURSDAY NIGHT. * WIND AND VISIBILITY...NORTH TO NORTHEAST WINDS OF 20 TO 30 MPH WITH GUSTS TO 40 MPH WILL CAUSE SIGNIFICANT BLOWING AND DRIFTING SNOW...ALONG WITH POSSIBLE WHITE OUT CONDITIONS. IN ADDITION...WINDS WILL COMBINE WITH COLD TEMPERATURES TO PRODUCE WIND CHILLS OF 20 BELOW TO 30 BELOW. * IMPACTS...TRAVEL ACROSS JOHNSON COUNTY...INCLUDING INTERSTATES 25 AND 90...WILL REMAIN HAZARDOUS THROUGH EARLY FRIDAY MORNING. THOSE PLANNING OUTDOOR ACTIVITIES SHOULD BE PREPARED FOR DETERIORATING WEATHER CONDITIONS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW AND BLOWING SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$ WYZ003-311200- /O.CON.KRIW.WW.Y.0045.000000T0000Z-101231T1200Z/ CODY FOOTHILLS- INCLUDING THE CITIES OF...CODY...MEETEETSE 1249 AM MST FRI DEC 31 2010 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST EARLY THIS MORNING... A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST EARLY THIS MORNING. * SUMMARY AND TIMING...PERIODS OF SNOW...HEAVY AT TIMES...WILL OCCUR THROUGH EARLY FRIDAY MORNING. * SNOW ACCUMULATIONS...2 TO 3 INCHES OF SNOW HAS FALLEN ACROSS THE AREA. AN ADDITIONAL 1 TO 3 INCHES OF SNOW WILL ACCUMULATE THROUGH EARLY FRIDAY MORNING. * WIND AND VISIBILITY...NORTH TO NORTHEAST WINDS OF 15 TO 25 MPH WITH GUSTS TO 30 MPH WILL CAUSE SIGNIFICANT BLOWING AND DRIFTING SNOW. IN ADDITION...WINDS WILL COMBINE WITH COLD TEMPERATURES TO PRODUCE WIND CHILLS OF 15 BELOW TO 25 BELOW. * IMPACTS...TRAVEL ACROSS THE AREA WILL REMAIN HAZARDOUS THROUGH EARLY FRIDAY MORNING. THOSE PLANNING OUTDOOR ACTIVITIES SHOULD BE PREPARED FOR DETERIORATING WEATHER CONDITIONS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW AND BLOWING SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$ WYZ017-311200- /O.CON.KRIW.WW.Y.0045.000000T0000Z-101231T1200Z/ WIND RIVER BASIN- INCLUDING THE CITIES OF...RIVERTON...SHOSHONI 1249 AM MST FRI DEC 31 2010 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST EARLY THIS MORNING... A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST EARLY THIS MORNING. * SUMMARY AND TIMING...PERIODS OF SNOW...HEAVY AT TIMES...WILL OCCUR THROUGH EARLY FRIDAY MORNING. * SNOW ACCUMULATIONS...4 TO 7 INCHES OF SNOW HAS FALLEN IN RIVERTON. 6 TO 7 INCHES OF SNOW WAS REPORTED IN RIVERTON...HUDSON AND PAVILLION. NEW SNOWFALL AROUND AN INCH IS POSSIBLE THROUGH 5 AM FRIDAY. * WIND AND VISIBILITY...NORTH TO NORTHEAST WINDS OF 15 TO 25 MPH WITH SOME GUSTS OF 35 MPH WILL CAUSE SIGNIFICANT BLOWING AND DRIFTING SNOW. IN ADDITION...WINDS WILL COMBINE WITH COLD TEMPERATURES TO PRODUCE WIND CHILLS OF 15 BELOW TO 25 BELOW ZERO BY TONIGHT. * IMPACTS...TRAVEL ACROSS THE WIND RIVER BASIN WILL REMAIN HAZARDOUS THROUGH FRIDAY MORNING. THOSE PLANNING OUTDOOR ACTIVITIES SHOULD BE PREPARED FOR DETERIORATING WEATHER CONDITIONS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW AND BLOWING SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$ WYZ009-311200- /O.CON.KRIW.WW.Y.0045.000000T0000Z-101231T1200Z/ BIGHORN MOUNTAINS SOUTHEAST- 1249 AM MST FRI DEC 31 2010 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST EARLY THIS MORNING... A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST EARLY THIS MORNING. * SUMMARY AND TIMING...PERIODS OF SNOW...HEAVY AT TIMES...WILL OCCUR THROUGH EARLY FRIDAY MORNING. * SNOW ACCUMULATIONS...6 TO 8 INCHES OF SNOW HAS FALLEN ALONG HIGHWAY 16 BETWEEN POWDER RIVER PASS AND BUFFALO PASS SO FAR TODAY. A STORM TOTAL OF 7 TO 9 INCHES OF SNOW WILL ACCUMULATE THROUGH EARLY FRIDAY MORNING. * WIND AND VISIBILITY...NORTH TO NORTHEAST WINDS OF 20 TO 30 MPH WITH GUSTS OF 35 MPH WILL CAUSE SIGNIFICANT BLOWING AND DRIFTING SNOW PRIMARILY OVER POWDER RIVER PASS. IN ADDITION... WINDS WILL COMBINE WITH COLD TEMPERATURES TO PRODUCE WIND CHILLS AROUND 10 TO 20 BELOW. * IMPACTS...TRAVEL OVER GRANITE AND POWDER RIVER PASSES WILL REMAIN HAZARDOUS THROUGH EARLY FRIDAY MORNING. THOSE PLANNING OUTDOOR ACTIVITIES SHOULD BE PREPARED FOR DETERIORATING WEATHER CONDITIONS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW AND BLOWING SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$ WYZ008-311200- /O.CON.KRIW.WW.Y.0045.000000T0000Z-101231T1200Z/ BIGHORN MOUNTAINS WEST- 1249 AM MST FRI DEC 31 2010 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST EARLY THIS MORNING... A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST EARLY THIS MORNING. * SUMMARY AND TIMING...PERIODS OF SNOW...HEAVY AT TIMES...WILL OCCUR THROUGH TONIGHT WITH THE HEAVIEST SNOWFALL EXPECTED BEFORE MIDNIGHT. * SNOW ACCUMULATIONS...6 TO 8 INCHES OF SNOW HAS FALLEN ON POWDER RIVER PASS WITH LESSER AMOUNTS AT THE LOWER ELEVATIONS WEST OF THE PASS AND ON THE REST OF THE WEST SLOPE OF THE BIG HORN MOUNTAINS. A STORM TOTAL OF 7 TO 9 INCHES OF SNOW WILL ACCUMULATE ON POWDER RIVER PASS WITH ONLY 4 TO 6 INCHES AT THE LOWER ELEVATIONS WEST OF THE PASS AND ON THE REST OF THE WEST SLOPE OF THE BIG HORN MOUNTAINS BY EARLY FRIDAY MORNING. * WIND AND VISIBILITY...NORTH TO NORTHEAST WINDS OF 20 TO 30 MPH WITH GUSTS OF 35 MPH WILL CAUSE SIGNIFICANT BLOWING AND DRIFTING SNOW PRIMARILY OVER POWDER RIVER PASS. IN ADDITION... WINDS WILL COMBINE WITH COLD TEMPERATURES TO PRODUCE WIND CHILLS AROUND 10 TO 20 BELOW. * IMPACTS...TRAVEL OVER GRANITE AND POWDER RIVER PASSES WILL REMAIN HAZARDOUS THROUGH EARLY FRIDAY MORNING. THOSE PLANNING OUTDOOR ACTIVITIES SHOULD BE PREPARED FOR DETERIORATING WEATHER CONDITIONS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW AND BLOWING SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$ TEAM RIVERTON
866 WWUS45 KRIW 311148 WSWRIW URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE RIVERTON WY 448 AM MST FRI DEC 31 2010 WYZ015-018-311300- /O.EXP.KRIW.WS.W.0021.000000T0000Z-101231T1200Z/ WIND RIVER MOUNTAINS EAST-LANDER FOOTHILLS- INCLUDING THE CITY OF...LANDER 448 AM MST FRI DEC 31 2010 ...WINTER STORM WARNING WILL EXPIRE AT 5 AM MST EARLY THIS MORNING... THE WINTER STORM WARNING WILL EXPIRE AT 5 AM MST EARLY THIS MORNING. ONLY LIGHT SNOW IS EXPECTED THE REMAINDER OF TODAY WITH LITTLE ADDITIONAL SNOWFALL ACCUMULATION. ROADS WILL REMAIN SLICK. SNOWFALL OF 6 TO 7 INCHES WAS REPORTED AROUND LANDER. $$ WYZ020-311300- /O.EXP.KRIW.WS.W.0021.000000T0000Z-101231T1200Z/ NATRONA COUNTY LOWER ELEVATIONS- INCLUDING THE CITY OF...CASPER 448 AM MST FRI DEC 31 2010 ...WINTER STORM WARNING WILL EXPIRE AT 5 AM MST EARLY THIS MORNING... THE WINTER STORM WARNING WILL EXPIRE AT 5 AM MST EARLY THIS MORNING. ONLY LIGHT SNOW IS EXPECTED THE REMAINDER OF TODAY WITH LITTLE ADDITIONAL SNOWFALL. SNOWFALL AMOUNTS VARIED FROM 5 TO 8 INCHES AS OF LATE THURSDAY EVENING. ROADS WILL REMAIN SNOWPACKED AND ICY MUCH OF TODAY. STRONG SOUTHWEST WINDS WILL RETURN OVER THE WEEKEND TO CREATE AREAS OF BLOWING SNOW AND BITTER COLD WIND CHILLS. $$ WYZ022-311300- /O.EXP.KRIW.WS.W.0021.000000T0000Z-101231T1200Z/ CASPER MOUNTAIN- 448 AM MST FRI DEC 31 2010 ...WINTER STORM WARNING WILL EXPIRE AT 5 AM MST EARLY THIS MORNING... THE WINTER STORM WARNING WILL EXPIRE AT 5 AM MST EARLY THIS MORNING. ONLY LIGHT SNOW IS EXPECTED THE REMAINDER OF TODAY WITH LITTLE ADDITIONAL SNOWFALL. ROADS WILL REMAIN SNOWPACKED AND ICY MUCH OF TODAY. STRONG SOUTHWEST WINDS WILL RETURN OVER THE WEEKEND TO CREATE AREAS OF BLOWING SNOW AND BITTER COLD WIND CHILLS. $$ WYZ019-311300- /O.EXP.KRIW.WS.W.0021.000000T0000Z-101231T1200Z/ GREEN MOUNTAINS AND RATTLESNAKE RANGE- INCLUDING THE CITY OF...JEFFREY CITY 448 AM MST FRI DEC 31 2010 ...WINTER STORM WARNING WILL EXPIRE AT 5 AM MST EARLY THIS MORNING... THE WINTER STORM WARNING WILL EXPIRE AT 5 AM MST EARLY THIS MORNING. ONLY LIGHT SNOW IS EXPECTED THE REMAINDER OF TODAY WITH LITTLE ADDITIONAL SNOWFALL. STRONG SOUTHWEST WINDS WILL RETURN OVER THE WEEKEND TO CREATE AREAS OF BLOWING SNOW AND BITTER COLD WIND CHILLS. $$ WYZ028>030-311300- /O.EXP.KRIW.WS.W.0021.000000T0000Z-101231T1200Z/ ROCK SPRINGS AND GREEN RIVER-FLAMING GORGE-EAST SWEETWATER COUNTY- INCLUDING THE CITIES OF...ROCK SPRINGS...GREEN RIVER...WAMSUTTER 448 AM MST FRI DEC 31 2010 ...WINTER STORM WARNING WILL EXPIRE AT 5 AM MST EARLY THIS MORNING... THE WINTER STORM WARNING WILL EXPIRE AT 5 AM MST EARLY THIS MORNING. ONLY LIGHT SNOW OR FLURRIES IS EXPECTED THE REMAINDER OF TODAY WITH LITTLE ADDITIONAL SNOWFALL. ROADS WILL REMAIN TREACHEROUS TODAY WITH PORTIONS OF INTERSTATE 80 STILL CLOSED AS OF 430 AM. SNOWFALL AMOUNTS OF 5 TO 6 INCHES WERE REPORTED AROUND ROCK SPRINGS AND GREEN RIVER. AREAS OF BLOWING SNOW WILL CONTINUE EAST OF ROCK SPRINGS TODAY WITH MORE BLOWING SNOW DEVELOPING TONIGHT AND SATURDAY AS WINDS SHIFT TO THE WEST. $$ WYZ014-311300- /O.EXP.KRIW.WW.Y.0045.000000T0000Z-101231T1200Z/ WIND RIVER MOUNTAINS WEST- 448 AM MST FRI DEC 31 2010 ...WINTER WEATHER ADVISORY WILL EXPIRE AT 5 AM MST EARLY THIS MORNING... THE WINTER WEATHER ADVISORY WILL EXPIRE AT 5 AM MST EARLY THIS MORNING. THE STORM HAS ENDED WITH NO ADDITIONAL SNOWFALL EXPECTED. TRAVEL OVER SOUTH PASS WILL REMAIN TREACHEROUS DUE TO THE RECENT SNOWFALL ...GUSTY NORTHEAST WINDS AND BITTER COLD TEMPERATURES. $$ WYZ005-007-311300- /O.EXP.KRIW.WW.Y.0045.000000T0000Z-101231T1200Z/ SOUTHWEST BIG HORN BASIN-OWL CREEK AND BRIDGER MOUNTAINS- INCLUDING THE CITY OF...THERMOPOLIS 448 AM MST FRI DEC 31 2010 ...WINTER WEATHER ADVISORY WILL EXPIRE AT 5 AM MST EARLY THIS MORNING... THE WINTER WEATHER ADVISORY WILL EXPIRE AT 5 AM MST EARLY THIS MORNING. ONLY LIGHT SNOW IS EXPECTED THE REMAINDER OF TODAY WITH LITTLE ADDITIONAL SNOWFALL ACCUMULATION. ROADS WILL REMAIN SLICK. SNOWFALL OF 5 TO 6 INCHES WAS REPORTED AROUND THERMOPOLIS. $$ WYZ006-311300- /O.EXP.KRIW.WW.Y.0045.000000T0000Z-101231T1200Z/ SOUTHEAST BIG HORN BASIN- INCLUDING THE CITY OF...WORLAND 448 AM MST FRI DEC 31 2010 ...WINTER WEATHER ADVISORY WILL EXPIRE AT 5 AM MST EARLY THIS MORNING... THE WINTER WEATHER ADVISORY WILL EXPIRE AT 5 AM MST EARLY THIS MORNING. ONLY LIGHT SNOW IS EXPECTED THE REMAINDER OF TODAY WITH LITTLE ADDITIONAL SNOWFALL ACCUMULATION. ROADS WILL REMAIN SLICK. SNOWFALL OF 8 INCHES WAS REPORTED AROUND WORLAND. $$ WYZ004-311300- /O.EXP.KRIW.WW.Y.0045.000000T0000Z-101231T1200Z/ NORTH BIG HORN BASIN- INCLUDING THE CITIES OF...POWELL...LOVELL...GREYBULL...BASIN 448 AM MST FRI DEC 31 2010 ...WINTER WEATHER ADVISORY WILL EXPIRE AT 5 AM MST EARLY THIS MORNING... THE WINTER WEATHER ADVISORY WILL EXPIRE AT 5 AM MST EARLY THIS MORNING. ONLY LIGHT SNOW IS EXPECTED THE REMAINDER OF TODAY WITH LITTLE ADDITIONAL SNOWFALL ACCUMULATION. ROADS WILL REMAIN SLICK. SNOWFALL OF 2 TO 5 INCHES WAS REPORTED AROUND THE AREA. $$ WYZ010-011-311300- /O.EXP.KRIW.WW.Y.0045.000000T0000Z-101231T1200Z/ NORTHEAST JOHNSON COUNTY-SOUTHEAST JOHNSON COUNTY- INCLUDING THE CITIES OF...BUFFALO...KAYCEE 448 AM MST FRI DEC 31 2010 ...WINTER WEATHER ADVISORY WILL EXPIRE AT 5 AM MST EARLY THIS MORNING... THE WINTER WEATHER ADVISORY WILL EXPIRE AT 5 AM MST EARLY THIS MORNING. ONLY LIGHT SNOW IS EXPECTED THE REMAINDER OF TODAY WITH LITTLE ADDITIONAL SNOWFALL ACCUMULATION. ROADS WILL REMAIN SLICK AND AREAS OF BLOWING SNOW WILL PERSIST THIS MORNING. SNOWFALL OF 5 TO 7 INCHES WAS REPORTED AROUND THE AREA. $$ WYZ003-311300- /O.EXP.KRIW.WW.Y.0045.000000T0000Z-101231T1200Z/ CODY FOOTHILLS- INCLUDING THE CITIES OF...CODY...MEETEETSE 448 AM MST FRI DEC 31 2010 ...WINTER WEATHER ADVISORY WILL EXPIRE AT 5 AM MST EARLY THIS MORNING... THE WINTER WEATHER ADVISORY WILL EXPIRE AT 5 AM MST EARLY THIS MORNING. ONLY LIGHT SNOW IS EXPECTED THE REMAINDER OF TODAY WITH LITTLE ADDITIONAL SNOWFALL ACCUMULATION. ROADS WILL REMAIN SLICK. SNOWFALL OF 2 TO 4 INCHES WAS REPORTED BETWEEN CODY AND MEETEETSE. $$ WYZ017-311300- /O.EXP.KRIW.WW.Y.0045.000000T0000Z-101231T1200Z/ WIND RIVER BASIN- INCLUDING THE CITIES OF...RIVERTON...SHOSHONI 448 AM MST FRI DEC 31 2010 ...WINTER WEATHER ADVISORY WILL EXPIRE AT 5 AM MST EARLY THIS MORNING... THE WINTER WEATHER ADVISORY WILL EXPIRE AT 5 AM MST EARLY THIS MORNING. ONLY LIGHT SNOW IS EXPECTED THE REMAINDER OF TODAY WITH LITTLE ADDITIONAL SNOWFALL ACCUMULATION. ROADS WILL REMAIN SLICK. SNOWFALL OF 5 TO 7 INCHES WAS REPORTED AROUND THE AREA. $$ WYZ009-311300- /O.EXP.KRIW.WW.Y.0045.000000T0000Z-101231T1200Z/ BIGHORN MOUNTAINS SOUTHEAST- 448 AM MST FRI DEC 31 2010 ...WINTER WEATHER ADVISORY WILL EXPIRE AT 5 AM MST EARLY THIS MORNING... THE WINTER WEATHER ADVISORY WILL EXPIRE AT 5 AM MST EARLY THIS MORNING. ONLY LIGHT SNOW IS EXPECTED THE REMAINDER OF TODAY WITH LITTLE ADDITIONAL SNOWFALL ACCUMULATION. ROADS WILL REMAIN SLICK. SNOWFALL OF 4 TO 8 INCHES WAS REPORTED. $$ WYZ008-311300- /O.EXP.KRIW.WW.Y.0045.000000T0000Z-101231T1200Z/ BIGHORN MOUNTAINS WEST- 448 AM MST FRI DEC 31 2010 ...WINTER WEATHER ADVISORY WILL EXPIRE AT 5 AM MST EARLY THIS MORNING... THE WINTER WEATHER ADVISORY WILL EXPIRE AT 5 AM MST EARLY THIS MORNING. ONLY LIGHT SNOW IS EXPECTED THE REMAINDER OF TODAY WITH LITTLE ADDITIONAL SNOWFALL ACCUMULATION. ROADS WILL REMAIN SLICK. SNOWFALL OF 4 TO 8 INCHES WAS REPORTED. $$ SKRBAC
What forecasters said that day
The local office's own words before this winter storm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Riverton, WY wrote its last area forecast discussion before this winter storm warning went out at Dec 28, 2:58 PM MST, 0 minutes earlier.
Area forecast discussion, Dec 28, 2:58 PM MST, 0 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE RIVERTON WY 258 PM MST TUE DEC 28 2010 .SHORT TERM...TONIGHT THROUGH FRIDAY FAIRLY BENIGN CONDITIONS NOTED ACROSS THE CWA THIS AFTERNOON...WHICH WILL CHANGE QUICKLY THIS EVENING WITH THE ARRIVAL OF THE AREA OF LOW PRESSURE. SNOWFALL WILL BEGIN OVER THE WESTERN MOUNTAINS THIS EVENING...AND IS EXPECTED TO INCREASE IN INTENSITY THROUGH THE OVERNIGHT HOURS. THE HEAVIEST SNOWFALL LOOKS TO IMPACT THE TETON AND GROS VENTRE MOUNTAINS....THE SALT RIVER AND WYOMING RANGES AND STAR VALLEY. LESSER AMOUNTS...THOUGH STILL SIGNIFICANT...WILL BE FOUND ACROSS YELLOWSTONE NATIONAL PARK...THE JACKSON VALLEY AND SOUTHERN LINCOLN COUNTY. APPROPRIATE WINTER WEATHER HIGHLIGHTS HAVE BEEN ISSUED FOR THESE AREAS...ADDITIONAL DETAILS CONCERNING SNOW AMOUNTS...HAZARDS AND TIMING CAN BE FOUND IN THE WINTER WEATHER STORM PRODUCT...WSWRIW. THE MAIN CHALLENGE IN THE CURRENT FORECAST IS THE PROGRESSION OF THIS AREA OF LOW PRESSURE WEDNESDAY NIGHT THROUGH FRIDAY. MODELS HAVE CHANGED THE LIFE AND EVOLUTION OF THIS STORM WITH EACH RUN OVER THE PAST FEW DAYS...WITH CURRENT MODELS PUSHING THE AREA OF LOW PRESSURE FURTHER SOUTH INSTEAD OF THE SPLIT LOW THAT WAS NOTED EARLIER. THE CURRENT SOLUTION WILL PRODUCE POTENTIALLY SIGNIFICANT SNOWFALL ACROSS PORTIONS OF WYOMING EAST OF THE CONTINENTAL DIVIDE...WITH THE POTENTIAL FOR SOME UPSLOPE SNOWFALL ACROSS FAVORED LOCATIONS. HOWEVER...GIVEN THE UNCERTAINTY IN THE EVOLUTION OF THE SYSTEM...AND THE WIDE VARIETY OF SNOWFALL THAT HAS BEEN GENERATED OVER THE LAST COUPLE OF DAYS...HAVE OPTED TO AVOID ISSUING ANY WINTER WEATHER HIGHLIGHTS FOR SNOWFALL AT THIS TIME. FUTURE SHIFTS WILL HOPEFULLY SEE A MORE DEFINING SOLUTION TO MAKE DECISIONS ON POSSIBLE NEEDED HIGHLIGHTS. MEANWHILE...WHAT IS MORE CERTAIN IS THE PROGRESSION OF THE ARCTIC FRONT THROUGH THE AREA WEDNESDAY NIGHT AND THURSDAY. THIS FRONT WILL MOVE SOUTH THROUGH THE CWA BRINGING FRIGID TEMPERATURES OVER MUCH OF THE AREA FOR THURSDAY...AND ESPECIALLY FRIDAY. THURSDAY NIGHT LOWS IN THE SUBZERO RANGE ARE EXPECTED TO BE COMMON...WITH FRIDAY DAYTIME HIGH TEMPERATURES IN THE SINGLE DIGITS. WIND OF 10 TO 15 MPH ACROSS NATRONA AND JOHNSON COUNTIES THROUGH THE DAYTIME HOURS OF FRIDAY WILL RESULT IN BITTERLY COLD TEMPERATURES. .LONG TERM...FRIDAY NIGHT THROUGH TUESDAY WINTER STORM WILL LIKELY STILL BE IMPACTING OUR ERN AND SRN ZONES THROUGH FRIDAY WITH BITTER COLD TEMPS...BREEZY TO LOCALLY WINDY AREAS AND AT LEAST LIGHT SNOWFALL. HAVE BUMPED UP POPS INTO THE HIGH CHANCE RANGE IN THE LOWER ELEVATIONS AND LIKELY IN THE MTNS. WE WILL LIKELY NEED TO HIT THESE HARDER IN THE SHORT TERM...ESPECIALLY WITH THE SLOWER ECMWF AND EVEN SLOWER YET NAM. GFS SEEMED ODD TONIGHT WITH FRACTURED LOOK AND DID NOT MATCH THE OVERALL MODEL OF WHAT A CLASSIC CLOSING OFF LOW SHOULD LOOK LIKE. THE ECMWF...NAM AND EVEN THE GEM MATCHED MUCH CLOSER WHAT THIS STORM SHOULD END UP LOOKING LIKE. OVERALL PATTERN HAS CHANGED LITTLE SINCE WE STARTED FOLLOWING THIS THE MIDDLE OF LAST WEEK. THIS STORM ORIGINATED IN THE POLAR REGIONS AND THE CENTRAL PACIFIC STORM SYSTEM WILL PUMP UP THE RIDGE ON THE BACKSIDE ALLOWING THIS STORM TO DIG QUICKLY INTO THE GREAT BASIN WEDNESDAY NIGHT BEFORE STALLING OUT OVER UT ON THURSDAY. THE SYSTEM WILL THEN LIKELY LIFT NE POSSIBLY BECOME MORE DISORGANIZED AS MANY INTENSE UPPER LOWS DO AFTER 18-24 HOURS. BITTER COLD AIR WILL THEN BECOME ENTRENCHED OVER THE AREA FOR A COUPLE DAYS WITH THE SNOW COVERED BASINS AND VALLEYS BECOMING BITTER COLD. COULD SEE 15 TO 25 BELOW ZERO EAST OF THE DIVIDE AND 25 TO 35 BELOW WEST OF THE DIVIDE. WINDS WILL TURN QUICKLY TO THE SW IN THE WIND CORRIDOR BY SATURDAY WITH A RAW DAY IN STORE FROM NE SWEETWATER COUNTY OVER TO CPR AND THE LEE OF THE MTN RANGES LIKE THE EAST SLOPE OF THE ABSAROKAS. MODELS DIFFER ON THE NEXT SHORTWAVE COMING DOWN WITH THE ECMWF HOLDING OFF UNTIL MONDAY AND THE GFS SHOWING SUNDAY. USUALLY...THESE SHORTWAVES FOLLOW WITHIN 48 HOURS SO WE WILL NEED TO WATCH THIS. THE GFS IS ALSO MUCH WETTER WITH A MOIST ISENTROPIC UPGLIDE PATTERN EARLY NEXT WEEK THAT THE ECMWF REALLY DOESN'T SHOW. THE END OF THE YEAR WILL DEFINITELY GO OUT ON A BITTER COLD NOTE WITH ALL THE EXPECTED FRESH SNOW COVER AND -20C H7 AIR OR COLDER THROUGH FRI NIGHT. && .AVIATION... EAST OF THE CONTINENTAL DIVIDE...EXPECT VFR CONDITIONS THROUGH MOST OF THE FORECAST PERIOD WITH SNOWFALL ANTICIPATED OVER THE NORTHERN MOUNTAINS AND SOUTHERN PORTIONS OF THE AREA AT THE END OF THE PERIOD. TURBULENT CONDITIONS EXPECTED AT THE LEE SIDE OF THE MOUNTAIN RANGES THROUGH WED. MODERATE WIND SPEEDS WILL BE POSSIBLE ACROSS MUCH OF SOUTHERN AND SOUTHEASTERN WYOMING...ESPECIALLY BETWEEN KRKS AND KCPR AND OVER THE WIND RIVER RANGE. GUSTY WINDS ALSO EXPECTED AT KCOD FOR THE FIRST HALF OF THE PERIOD. LLWS POSSIBLE AT KLND TOWARD THE END OF THE PERIOD. THE NORTHERN MOUNTAINS WILL BE OBSCURED IN SNOWFALL AND LOWERED CEILINGS FOR THE ENTIRE PERIOD. THE WIND RIVER RANGE WILL BECOME OBSCURED TOWARD THE END OF THE PERIOD. WEST OF THE CONTINENTAL DIVIDE...SNOWFALL WILL IMPACT THE WESTERN MOUNTAINS AND EXTREME WESTERN VALLEYS THROUGH MUCH OF THE FORECAST PERIOD. THIS WILL BRING PERIODS OF MVFR CONDITIONS OVER KJAC...WITH THE POTENTIAL FOR SOME PERIODS OF IFR AND LIFR CONDITIONS. THE REMAINING VALLEYS ARE EXPECTED TO SEE GENERALLY MVFR CONDITIONS WITH PERIODS OF IFR CONDITIONS ALONG HEAVIER SNOW BANDS. THE WESTERN MOUNTAINS WILL HAVE OBSCURED TOPS DUE TO SNOWFALL AND LOWERED CEILINGS. INCREASED WIND WILL BE NOTED OVER THE CENTRAL MOUNTAINS ...CAUSING INCREASED TURBULENCE OVER MOUNTAIN PASSES. && .FIRE WEATHER... ANOTHER MAJOR WINTER STORM IS ON ITS WAY. MOST IF NOT ALL OF THE FORECAST AREA WILL RECEIVE SOME ACCUMULATING SNOW AT SOME POINT BY THE END OF THE WORK WEEK. THE INITIAL HEAVY SNOWFALL WILL BE FOUND ACROSS THE WESTERN MOUNTAINS AND VALLEYS...AND WILL BEGIN LATE THIS EVENING. THIS SNOWFALL WILL CONTINUE THROUGH WEDNESDAY EVENING. ADDITIONAL...POTENTIALLY SIGNIFICANT SNOWFALL MAY BE FOUND ACROSS AREAS EAST OF THE CONTINENTAL DIVIDE ON THURSDAY. WINDS WILL BE GUSTY AT TIMES IN THE USUAL AREAS...ESPECIALLY BETWEEN KRKS AND KCPR AND OVER MOUNTAIN TOPS. VERY COLD AIR WILL MOVE IN BEHIND THE FRONT ON WEDNESDAY NIGHT INTO THURSDAY MORNING WITH FRIGID TEMPERATURES EXPECTED BY FRIDAY ACROSS THE FORECAST AREA. && .RIW WATCHES/WARNINGS/ADVISORIES... WINTER STORM WARNING FROM MIDNIGHT TONIGHT TO MIDNIGHT MST WEDNESDAY NIGHT WYZ012-023-024. WINTER WEATHER ADVISORY FROM MIDNIGHT TONIGHT TO MIDNIGHT MST WEDNESDAY NIGHT WYZ001-013-027. && SHORT TERM...BRANHAM LONG TERM...SKRBAC AVIATION...ALLEN FIRE WEATHER...ALLEN/BRANHAM
Hazardous weather outlook, Dec 28, 5:00 AM MST, 9 hours 58 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE RIVERTON WY 500 AM MST TUE DEC 28 2010 WYZ001>020-022>030-291200- ABSAROKA MOUNTAINS-BIGHORN MOUNTAINS SOUTHEAST- BIGHORN MOUNTAINS WEST-CASPER MOUNTAIN-CODY FOOTHILLS- EAST SWEETWATER COUNTY-FLAMING GORGE- GREEN MOUNTAINS AND RATTLESNAKE RANGE-JACKSON HOLE-LANDER FOOTHILLS- NATRONA COUNTY LOWER ELEVATIONS-NORTH BIG HORN BASIN- NORTHEAST JOHNSON COUNTY-OWL CREEK AND BRIDGER MOUNTAINS- ROCK SPRINGS AND GREEN RIVER-SALT RIVER AND WYOMING RANGES- SOUTH LINCOLN COUNTY-SOUTHEAST BIG HORN BASIN- SOUTHEAST JOHNSON COUNTY-SOUTHWEST BIG HORN BASIN-STAR VALLEY- TETON AND GROS VENTRE MOUNTAINS-UPPER GREEN RIVER BASIN- UPPER GREEN RIVER BASIN FOOTHILLS-UPPER WIND RIVER BASIN- WIND RIVER BASIN-WIND RIVER MOUNTAINS EAST-WIND RIVER MOUNTAINS WEST- YELLOWSTONE NATIONAL PARK- 500 AM MST TUE DEC 28 2010 ...WINTER STORM WATCHES FOR PORTIONS OF WESTERN WYOMING LATE TONIGHT THROUGH WEDNESDAY EVENING... THIS HAZARDOUS WEATHER OUTLOOK IS FOR WESTERN AND CENTRAL WYOMING. .DAY ONE...TODAY AND TONIGHT A SIGNIFICANT STORM SYSTEM WILL MOVE INTO THE GREAT BASIN TONIGHT... WITH SIGNIFICANT MODERATE TO POSSIBLY HEAVY SNOW DEVELOPING OVER FAR WESTERN WYOMING AROUND MIDNIGHT. THE SNOW IS EXPECTED TO CONTINUE INTO WEDNESDAY THERE. .DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY THE SNOW WILL CONTINUE OVER WESTERN WYOMING THROUGH WEDNESDAY EVENING BEFORE TAPERING TO LIGHT SNOW. SNOWFALL OF A FOOT OR MORE IS POSSIBLE IN THE TETONS AND THE SALT RIVER RANGE...WITH A HALF FOOT OR BETTER IN THE STAR VALLEY. LESSER AMOUNTS ARE POSSIBLE ELSEWHERE ACROSS WESTERN WYOMING. SOUTHWEST WINDS WILL CAUSE SOME BLOWING AND DRIFTING SNOW. A LARGE UPPER LOW WILL THEN DEVELOP OVER UTAH WEDNESDAY NIGHT INTO THURSDAY. AT THE SAME TIME...A STRONG COLD FRONT WILL MOVE SOUTH OUT OF MONTANA WEDNESDAY NIGHT SHIFTING THE SNOW TO AREAS EAST OF THE DIVIDE AND OVER SWEETWATER COUNTY. THE SNOW...POSSIBLY HEAVY AT TIMES...WILL CONTINUE THROUGH THURSDAY EVENING BEFORE TAPERING TO LIGHT SNOW OR FLURRIES. SIGNIFICANT SNOWFALL IN EXCESS OF 6 INCHES IS QUITE POSSIBLE IN THE FAVORED UPSLOPE AREAS...ESPECIALLY LANDER...RIVERTON...CASPER AND THERMOPOLIS. HEAVY SNOW IS ALSO AS FAR SOUTH AS SWEETWATER COUNTY. NORTH TO NORTHEAST WINDS IN THESE AREAS WILL CAUSE AREAS OF BLOWING AND DRIFTING SNOW. THE COLDEST AIR OF THE SEASON WILL MOVE IN BEHIND THIS STORM SYSTEM. HIGHS THURSDAY WILL LIKELY BE DROPPING DURING THE DAY IN MOST AREAS WITH ONLY SINGLE DIGITS EXPECTED THURSDAY AFTERNOON. BY FRIDAY MORNING...LOWS WILL BE 5 TO 15 BELOW EAST OF THE DIVIDE AND 15 TO 25 BELOW WEST OF THE DIVIDE. THE WESTERN AND CENTRAL BASINS AND VALLEYS WILL BE COLDER STILL ON SATURDAY MORNING WITH 10 TO 20 BELOW ZERO COMMON IN THE WIND RIVER AND BIGHORN BASINS AND 20 TO 30 BELOW ZERO WEST OF THE DIVIDE. TRAVEL WILL BE IMPACTED OVER THE WEST FROM TONIGHT THROUGH WEDNESDAY NIGHT AND FROM WEDNESDAY NIGHT THROUGH AT LEAST THURSDAY NIGHT OR FRIDAY MORNING EAST OF THE DIVIDE. .SPOTTER INFORMATION STATEMENT... SPOTTERS ARE ASKED TO REPORT SNOWFALL OVER WESTERN WYOMING TONIGHT. THANK YOU. TEAM RIVERTON
In the hours before
Special weather statement, Dec 28, 11:59 AM MST, 2 hours 59 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE RIVERTON WY 1159 AM MST TUE DEC 28 2010 WYZ019-282100- GREEN MOUNTAINS AND RATTLESNAKE RANGE- 1159 AM MST TUE DEC 28 2010 LOCAL STRONG WINDS OF 40 TO 50 MPH WITH GUSTS TO 60 MPH WILL BE ENCOUNTERED AROUND BEAVER RIM...HIGHLAND AND MUDDY GAP THIS AFTERNOON. MOTORISTS SHOULD BE PREPARED FOR STRONG CROSS WINDS. C.BAKER
Special weather statement, Dec 28, 2:39 PM MST, 19 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE RIVERTON WY 239 PM MST TUE DEC 28 2010 ...WINTER STORM IMPACTING THE COWBOY STATE THROUGH FRIDAY MORNING... WYZ002-003-005-007-014>019-025-026-028>030-291005- ABSAROKA MOUNTAINS-CODY FOOTHILLS-EAST SWEETWATER COUNTY- FLAMING GORGE-GREEN MOUNTAINS AND RATTLESNAKE RANGE-LANDER FOOTHILLS- OWL CREEK AND BRIDGER MOUNTAINS-ROCK SPRINGS AND GREEN RIVER- SOUTHWEST BIG HORN BASIN-UPPER GREEN RIVER BASIN- UPPER GREEN RIVER BASIN FOOTHILLS-UPPER WIND RIVER BASIN- WIND RIVER BASIN-WIND RIVER MOUNTAINS EAST-WIND RIVER MOUNTAINS WEST- 239 PM MST TUE DEC 28 2010 A STORM SYSTEM IS MOVING INTO THE WESTERN UNITED STATES THIS EVENING. SNOW HAS ALREADY BEGUN TO FALL IN THE WESTERN MOUNTAINS... SNOW WILL SPREAD EAST AS THE STORM MOVES INTO THE PLAINS ON WEDNESDAY AFTERNOON. A SECONDARY LOW WILL FORM OVER THE COLORADO ROCKIES AND SPREAD ANOTHER ROUND OF SNOW INTO THE AREA. DUE TO THE EXPECTED TRACK OF THIS LOW...A SIGNIFICANT AMONT OF SNOW IS EXPECTED TO MOVE INTO AREAS EAST OF THE CONTINENTAL DIVIDE ON THURSDAY. SNOW ACCUMULATION UP TO 3 INCHES WILL BE COMMON IN VALLEY LOCATIONS WHILE ACCUMULATION AROUND OF 6 INCHES WILL BE COMMON OVER HIGHER ELEVATIONS. LOCAL MODERATE WINDS AND VERY COLD AIR WILL ACCOMPANY THE SNOW MAKING TRAVEL DIFFICULT ALONG AREA ROADS DUE TO FALLING AND BLOWING SNOW. IN ADDITION...THOSE EXPECTING TO PARTICIPATE IN OUTDOOR ACTIVITIES ON THURSDAY INTO FRIDAY SHOULD BE PREPARED FOR VERY COLD TEMPERATURES AND LOW WIND CHILLS. HOLIDAY TRAVELLERS AND RESIDENTS SHOULD BEGIN PREPARATIONS FOR THIS UPCOMING WINTER STORM. A MAJOR IMPACT TO TRAVEL AND OUTDOOR ACTIVITIES WILL LIKELY OCCUR WITH THIS STORM BEGINNING IN THE WEST THIS EVENING AND SPREADING EAST THROUGH FRIDAY. WYZ020-022-291005- CASPER MOUNTAIN-NATRONA COUNTY LOWER ELEVATIONS- 239 PM MST TUE DEC 28 2010 A STORM SYSTEM IS MOVING INTO THE WESTERN UNITED STATES THIS EVENING. SNOW WILL SPREAD EAST AS THE STORM MOVES INTO THE PLAINS ON WEDNESDAY AFTERNOON. A SECONDARY LOW WILL FORM OVER THE COLORADO ROCKIES AND SPREAD ANOTHER ROUND OF SNOW INTO THE AREA. DUE TO THE EXPECTED TRACK OF THIS LOW...2 TO 6 INCHES OF SNOW IS EXPECTED TO FALL IN NATRONA COUNTY AND CAPSER MOUNTAIN ON THURSDAY. HEAVIEST ACCUMULATIONS ARE EXPECTED TO BEGIN DURING THE MORNING COMMUTE AND LAST THROUGH THE WORK DAY. MODERATE TO STRONG WINDS GUSTING IN EXCESS OF 45 MPH AND VERY COLD AIR WILL ACCOMPANY THE SNOW MAKING TRAVEL DIFFICULT ALONG AREA ROADS DUE TO FALLING AND BLOWING SNOW. IN ADDITION...THOSE EXPECTING TO PARTICIPATE IN OUTDOOR ACTIVITIES ON THURSDAY INTO FRIDAY SHOULD BE PREPARED FOR VERY COLD TEMPERATURES AND LOW WIND CHILLS. HOLIDAY TRAVELLERS AND RESIDENTS SHOULD BEGIN PREPARATIONS FOR THIS UPCOMING WINTER STORM. A MAJOR IMPACT TO TRAVEL AND OUTDOOR ACTIVITIES WILL LIKELY OCCUR WITH THIS STORM ON THURSDAY...MAKING TRAVEL DIFFICULT IF NOT IMPOSSIBLE AT TIMES. WYZ004-006-008>011-291005- BIGHORN MOUNTAINS SOUTHEAST-BIGHORN MOUNTAINS WEST- NORTH BIG HORN BASIN-NORTHEAST JOHNSON COUNTY- SOUTHEAST BIG HORN BASIN-SOUTHEAST JOHNSON COUNTY- 239 PM MST TUE DEC 28 2010 A STORM SYSTEM IS MOVING INTO THE WESTERN UNITED STATES THIS EVENING. SNOW WILL SPREAD EAST INTO THE AREA AS THE LOW MOVES INTO THE PLAINS ON WEDNESDAY AFTERNOON. A SIGNIFICANT AMOUNT OF COLD AIR WILL MOVE INTO THE BIGHORN BASIN AND JOHNSON COUNTY ON WEDNESDAY EVENING AND WILL PERSIST THROUGH FRIDAY. TEMPERATURES WILL DROP TO NEAR ZERO ON WEDNESDAY NIGHT AND WILL NOT RECOVER MUCH ON THURSDAY. A SIGNIFICANT AMOUNT OF SNOW WILL ACCOMPANY THIS STORM AS WELL. EXPECT A STEADY LIGHT SNOWFALL BEGINNING ON WEDNESDAY EVENING AND LASTING INTO FRIDAY. MODERATE WINDS ARE EXPECTED ALONG I-25 ON WEDNESDAY BEFORE THE FRONT PASSES. WINDS WILL SHIFT TO THE NORTH AFTER THE FRONT PASSES ON WEDNESDAY NIGHT AND FUNNEL INTO THE BIGHORN BASIN...GUSTING UP TO 35 MPH AT TIMES...CAUSING LOW WIND CHILLS AND REDUCED VISIBILITY. HOLIDAY TRAVELLERS AND RESIDENTS SHOULD BEGIN PREPARATIONS FOR THIS UPCOMING WINTER STORM. A MAJOR IMPACT TO TRAVEL AND OUTDOOR ACTIVITIES WILL LIKELY OCCUR WITH THIS STORM ON THURSDAY...MAKING TRAVEL DIFFICULT IF NOT IMPOSSIBLE AT TIMES. K. ALLEN
The office that day
Everything else NWS Riverton, WY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Dec 28, 2:50 AM MST | Winter Storm Watch | RIW | Fremont, Lincoln, Sublette, Teton | 13 hr |
| Dec 28, 2:58 PM MST | Winter Weather Advisory | RIW | Big Horn, Fremont, Hot Springs, Johnson, Lincoln, Natrona and 5 more | 62 hr |
Nearby
Winter Storm Warnings in Wyoming, 2010Every winter storm warning in 2010
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.